Due to not having reached the age of 19, he was posted to the 3rd Battalion, Argylls, a training unit, stationed near Edinburgh. In April 1916 he was sent to the Western Front where he joined the 2nd Battalion (the 93rd), a Regular Army unit which was then serving as part of the 98th Brigade of the 33rd Division, in Northeast France, and immediately became involved in fierce trench warfare at Brickstacks.
With IX Corps HQ disbanded, MacMillan was transferred briefly as BGS to the First Army headquarters, whose responsibilities included arranging for the victory parade on 20 May 1943 which involved some 26,000 Allied troops of various nationalities. Following the parade, on 17 June, he was posted to command the 12th Infantry Brigade, taking over from Brigadier Richard Hull, part of the 4th Mixed Division, then commanded by Major-General John Hawkesworth. The division had come under IX Corps command for the final stages of the campaign and so MacMillan was familiar with it. However, just eight days later, he was given command of the 152nd Infantry Brigade, one of three brigades – the others being the 153rd under Brigadier Horatius Murray and the 154th under Brigadier Thomas Rennie – making up the veteran 51st (Highland) Infantry Division, which was then commanded by Major-General Douglas Wimberley Under Wimberley's command the division had fought during the Second Battle of El Alamein and throughout North Africa, notably in Egypt, Libya and Tunisia, as an integral part of the British Eighth Army, commanded by General Sir Bernard Montgomery, who had been one of MacMillan's instructors at the Staff College, Camberley in the late 1920s, and had formed a good opinion of him.
Soon after returning to the United Kingdom from Sicily, MacMillan received a promotion to acting major-general on 27 August 1943 and received his first divisional command of the war when he succeeded Major-General Charles Bullen-Smith as the General Officer Commanding (GOC) of the 15th (Scottish) Infantry Division, a second line TA formation. The division was created in September 1939 as a second line TA duplicate of the first line 52nd (Lowland) Infantry Division, initially composed of the 44th, 45th and 46th Infantry Brigades and supporting divisional troops. However, in November 1941, the division had been placed on the Lower Establishment, meaning the division received a low priority for equipment and supplies and, throughout 1942, had had to supply drafts for British forces in the Middle East and the Far East. In January 1943 the 6th Guards Tank Brigade replaced the 45th Brigade and the division, raised in March to the Higher Establishment, was then converted into a mixed division, of one armoured and two infantry brigades. A month after MacMillan's assumption of command, the division was reconstituted as a standard infantry division of three brigades, composed now of the 44th, 46th and 227th Infantry Brigades, and containing battalions from eight of the ten Scottish infantry regiments.
Dempsey, the army commander, and O'Connor, MacMillan's corps commander, gave similar praise.
The next two weeks the division supported the 43rd Division during its attempts to capture Hill 112 in Operation Jupiter, which was followed by its participation in Operation Greenline, part of the Second Battle of the Odon. Like Epsom, it again attracted German armour but did not succeed. After a brief rest the division, on 23 July, transferred to XXX Corps, under Lieutenant-General Gerard Bucknall, another fellow student at the Staff College in the late 1920s, and saw further very tough action to secure the Bois du Homme as part of Operation Bluecoat at the end of July/beginning of August. On 3 August, MacMillan was wounded in the knee by shrapnel and evacuated to England, later Broadstone Hospital, Port Glasgow. That evening, Lieutenant-General O'Connor, GOC VIII Corps, who greatly admired MacMillan wrote in the following words to his wife: "Babe is slightly wounded. It is a tragedy as he has been the mainstay of this party, and stands out head and shoulders above everyone else. He is one of the best, if not the best, and commands the best lot out here. This is beyond dispute. I shall miss him as a friend, collaborator and adviser. Most of the success out here has been the result of his initial efforts." Command of the division passed to Brigadier Colin Barber, formerly commander of the 46th Brigade. MacMillan was appointed a Companion of the Order of the Bath for "his excellent example and untiring efforts" during the period following the landings.
Once pronounced fit in November, MacMillan, whose rank of major-general was made temporary on 27 August 1944, became GOC of the 49th (West Riding) Infantry Division, succeeding Major-General Evelyn Barker, another fellow Staff College student who was promoted to become GOC of VIII Corps in place of O'Connor, who was being sent to India.
Like MacMillan's former command, the 49th Division (nicknamed "The Polar Bears" due to its divisional insignia), with Major Christopher Welby-Everard (later a lieutenant-general) as its GSO1, was another TA formation, composed of the 56th, 146th and 147th Infantry Brigades and supporting divisional troops. The division, serving as part of Lieutenant-General Guy Simonds's II Canadian Corps, part of General Harry Crerar's First Canadian Army, was assigned to hold an area known as "the Island", near Nijmegen in the Netherlands, against German advances in the aftermath of Operation Market Garden. Several minor skirmishes took place during the wet and bitterly cold winter. The division had just launched an offensive to drive the Germans out of their remaining positions when MacMillan was ordered to become GOC of the 51st (Highland) Division in place of his friend, Major-General Tom Rennie, who had commanded the 154th Brigade in Sicily when MacMillan commanded the 152nd Brigade. Rennie had been killed by mortar fire during the crossing of the Rhine on 23 March.
Assuming command the day after, the division, serving as part of Lieutenant-General Brian Horrocks's XXX Corps, itself part of Dempsey's British Second Army, was engaged in a number of hard-fought battles as it moved swiftly north-eastwards into Germany until the German surrender on 8 May 1945 and the end of World War II in Europe. MacMillan then led his troops in the victory parade in Bremerhaven on 12 May. He was subsequently made a Grand Officer of the Dutch Order of Orange-Nassau for his "exceptional valour, leadership, loyalty and outstanding devotion to duty and great perseverance" during the liberation of the Netherlands. He was also mentioned in despatches for "gallant and distinguished service" on two occasions, on 9 August 1945 and 4 April 1946.
As soon as the war ended, MacMillan was ordered to return to the United Kingdom and, handing over the 51st Division to Major-General James Cassels, was appointed Director of Weapons and Development on the General Staff at the War Office in London. He was also made Colonel of the Argyll and Sutherland Highlanders on 1 October 1945.
MacMillan was promoted to the acting rank of lieutenant-general on 10 February 1947, and, three days later, took up his duties as GOC British Forces in Palestine and Trans-Jordan, replacing Lieutenant-General Sir Evelyn Barker, who he had succeeded as GOC of the 49th Division in November 1944, and who was then being sent home amid allegations of having had an affair and his antisemitic order following the King David Hotel Bombing in July 1946. While there, MacMillan was promoted to lieutenant-general on 17 November 1947. One unnamed journalist described this as "perhaps the most unpleasant job that has ever fallen to the lot of a British general" but went on to observe that the newly promoted Lieutenant-General MacMillan is "quiet, efficient, yet capable of divine wrath when the need arises: he is a great leader and is both loved and respected by his subordinates."
MacMillan died in a car accident on 21 January 1986, just two weeks after his eighty-ninth birthday.
"No. 16868". The Edinburgh Gazette. 29 June 1951. p. 333. https://www.thegazette.co.uk/Edinburgh/issue/16868/page/333
"Welcome to Finlaystone Country Estate". Finlaystone Country Estate. Retrieved 23 August 2014. http://www.Finlaystone.co.uk
Mosley, Charles, editor. Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes. Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003.
MacMillan et al. 2013, p. 13. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
St. Edmund's School, Canterbury, Archives
Smart 2005, p. 203. - Smart, Nick (2005). Biographical Dictionary of British Generals of the Second World War. Barnesley: Pen & Sword. ISBN 1844150496.
"No. 29258". The London Gazette. 10 August 1915. p. 7905. https://www.thegazette.co.uk/London/issue/29258/page/7905
MacMillan et al. 2013, p. 17. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
MacMillan et al. 2013, p. 17. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 18. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 26. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 22. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 30123". The London Gazette (Supplement). 8 June 1917. p. 5711. https://www.thegazette.co.uk/London/issue/30123/supplement/5711
"No. 30247". The London Gazette (Supplement). 21 August 1917. p. 8671. https://www.thegazette.co.uk/London/issue/30247/supplement/8671
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
MacMillan et al. 2013, pp. 23–24. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan's own account of the First World War can be found in: Leeds University Library, Liddle Collection, Reference GS 1032, Gordon MacMillan.
MacMillan et al. 2013, p. 26. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"The Military Cross". North East Medals. Retrieved 23 August 2014. http://www.northeastmedals.co.uk/britishguide/military_cross/mc.htm
"No. 13877". The Edinburgh Gazette. 22 December 1922. p. 1957. https://www.thegazette.co.uk/Edinburgh/issue/13877/page/1957
Full citations for these and other medals are quoted in MacMillan, George etc (See Reference 1)
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
Smart 2005, p. 203. - Smart, Nick (2005). Biographical Dictionary of British Generals of the Second World War. Barnesley: Pen & Sword. ISBN 1844150496.
MacMillan et al. 2013, p. 35. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
MacMillan et al. 2013, p. 39. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 40. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 33585". The London Gazette. 4 March 1930. p. 1418. https://www.thegazette.co.uk/London/issue/33585/page/1418
"No. 33589". The London Gazette. 18 March 1930. p. 1729. https://www.thegazette.co.uk/London/issue/33589/page/1729
"No. 33800". The London Gazette. 1 February 1932. p. 1128. https://www.thegazette.co.uk/London/issue/33800/page/1128
"No. 34030". The London Gazette. 6 March 1934. p. 1530. https://www.thegazette.co.uk/London/issue/34030/page/1530
"No. 33844". The London Gazette (Supplement). 8 July 1932. p. 4469. https://www.thegazette.co.uk/London/issue/33844/supplement/4469
MacMillan et al. 2013, p. 45. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 34144". The London Gazette. 22 March 1935. p. 1982. https://www.thegazette.co.uk/London/issue/34144/page/1982
"No. 34390". The London Gazette. 20 April 1937. p. 2554. https://www.thegazette.co.uk/London/issue/34390/page/2554
"No. 34446". The London Gazette. 22 October 1937. p. 6511. https://www.thegazette.co.uk/London/issue/34446/page/6511
"No. 34538". The London Gazette (Supplement). 5 August 1938. p. 5026. https://www.thegazette.co.uk/London/issue/34538/supplement/5026
"No. 34588". The London Gazette. 10 January 1939. p. 215. https://www.thegazette.co.uk/London/issue/34588/page/215
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
MacMillan et al. 2013, p. 58. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
MacMillan et al. 2013, p. 60. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
MacMillan et al. 2013, p. 62. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
MacMillan et al. 2013, p. 63. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
"No. 36120". The London Gazette (Supplement). 5 August 1943. p. 3522. https://www.thegazette.co.uk/London/issue/36120/supplement/3522
MacMillan et al. 2013, p. 68−69. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
Mead 2007, p. 277. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
MacMillan et al. 2013, p. 70. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead, p. 278
Mead, p. 278
Mead, p. 278
"No. 36251". The London Gazette (Supplement). 16 November 1943. p. 5061. https://www.thegazette.co.uk/London/issue/36251/supplement/5061
MacMillan et al. 2013, p. 73. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 36186". The London Gazette (Supplement). 24 September 1943. p. 4295. https://www.thegazette.co.uk/London/issue/36186/supplement/4295
MacMillan et al. 2013, p. 73. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead, p. 278
Mead, p. 278
MacMillan et al. 2013, p. 75. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead, p. 278
Mead, p. 278
Baynes 1989, p. 184. - Baynes, John (1989). The Forgotten Victor: General Sir Richard O'Connor KT, GCB, DSO, MC. Brassey's, London. ISBN 978-0080362694.
MacMillan et al. 2013, p. 75. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 78. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead, p. 278
Mead, p. 278
MacMillan et al. 2013, p. 78. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead, p. 278
Mead, p. 278
MacMillan et al. 2013, p. 80. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 80. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 80. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead, p. 278
MacMillan et al. 2013, p. 82. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 86. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Baynes 1989, p. 221. - Baynes, John (1989). The Forgotten Victor: General Sir Richard O'Connor KT, GCB, DSO, MC. Brassey's, London. ISBN 978-0080362694.
MacMillan et al. 2013, p. 86. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 36917". The London Gazette (Supplement). 30 January 1945. p. 669. https://www.thegazette.co.uk/London/issue/36917/supplement/669
Mead 2007, p. 279. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
MacMillan et al. 2013, p. 88. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 91. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
Mead 2007, p. 279. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
Mead 2007, p. 279. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
History of 51st (Highland) Division http://51hd.co.uk/history http://51hd.co.uk/history
MacMillan et al. 2013, p. 96. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 37213". The London Gazette (Supplement). 7 August 1945. p. 4044. https://www.thegazette.co.uk/London/issue/37213/supplement/4044
"No. 37521". The London Gazette (Supplement). 2 April 1946. p. 1672. https://www.thegazette.co.uk/London/issue/37521/supplement/1672
Mead 2007, p. 279. - Mead, Richard (2007). Churchill's Lions: A Biographical Guide to the Key British Generals of World War II. Stroud: Spellmount. ISBN 978-1-86227-431-0.
MacMillan et al. 2013, p. 107. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 37303". The London Gazette (Supplement). 9 October 1945. p. 5012. https://www.thegazette.co.uk/London/issue/37303/supplement/5012
MacMillan et al. 2013, p. 108. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 37891". The London Gazette (Supplement). 25 February 1947. p. 959. https://www.thegazette.co.uk/London/issue/37891/supplement/959
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
Letter to MacMillan from War Office, dated 24 October 1946 (Imperial War Museum, Private papers of General Sir Gordon MacMillan, Cat. No. 12052)
MacMillan et al. 2013, p. 119. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 38130". The London Gazette (Supplement). 21 November 1947. p. 5573. https://www.thegazette.co.uk/London/issue/38130/supplement/5573
From scrapbook amongst MacMillan private papers retained at Finlaystone
"Palestine Conference (Government Policy)". Parliamentary Debates (Hansard). Hansard (House of Commons Debate) Vol 433, cc985-94. 18 February 1947. Retrieved 23 August 2014. https://api.parliament.uk/historic-hansard/commons/1947/feb/18/palestine-conference-government-policy
Collins and Lapierre, Chapter 23
Sir Alan Cunningham's private papers, relating to his time in Palestine, are deposited at St. Antony's College, Oxford, Middle East Centre Archives. They include many references to MacMillan.
MacMillan et al. 2013, p. 123. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
See Motti, Golani,The End of the British Mandate in Palestine, 1948: The Diary of Sir Henry Gurney, Palgrave 2009
Events during his tenure in Palestine were summarised in his report, written in Fayid (Egypt) and dated 3 July 1948, under the title: Palestine:Narrative of Events from February 1947 until the Withdrawal of All British Troops. (Imperial War Museum. Private Papers of General Sir Gordon MacMillan, catalogue no. 12052).
Ben-Yehuda 1992, p. 279−280. - Ben-Yehuda, Nachman (1992). Political Assassination by Jews: a rhetorical device for justice. State University of New York Press. ISBN 978-0791411667.
MacMillan et al. 2013, p. 131. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
The Planning of the Evacuation of Palestine, Notes by the Chief of Staff, Haifa, 30 June 1948. (Imperial War Museum, MacMillan papers (see above))
"No. 16628". The Edinburgh Gazette. 11 March 1949. p. 106. https://www.thegazette.co.uk/Edinburgh/issue/16628/page/106
"No. 39492". The London Gazette (Supplement). 14 March 1952. p. 1529. https://www.thegazette.co.uk/London/issue/39492/supplement/1529
MacMillan et al. 2013, p. 138. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 39531". The London Gazette. 2 May 1952. p. 2368. https://www.thegazette.co.uk/London/issue/39531/page/2368
"No. 40503". The London Gazette (Supplement). 7 June 1955. p. 3311. https://www.thegazette.co.uk/London/issue/40503/supplement/3311
"No. 40106". The London Gazette (Supplement). 19 February 1954. p. 1145. https://www.thegazette.co.uk/London/issue/40106/supplement/1145
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
MacMillan et al. 2013, p. 148. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 40181". The London Gazette. 25 May 1954. p. 3071. https://www.thegazette.co.uk/London/issue/40181/page/3071
"British Army officer histories". Unit Histories. Retrieved 19 July 2022. https://www.unithistories.com/officers/Army_officers_M01.html#MacMillan_GHA
"Finlaystone House and Gardens". Retrieved 23 August 2014. http://www.finlaystonehouse.com/
"No. 41508". The London Gazette (Supplement). 26 September 1958. p. 5957. https://www.thegazette.co.uk/London/issue/41508/supplement/5957
MacMillan et al. 2013, p. 144. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
"No. 40656". The London Gazette. 16 December 1955. p. 7071. https://www.thegazette.co.uk/London/issue/40656/page/7071
MacMillan et al. 2013, p. 180. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 183. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 185. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 187. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 187. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
MacMillan et al. 2013, p. 212. - MacMillan, George; MacMillan, John; MacMillan, Judy; MacMillan, David; MacMillan, Andrew (2013). General Sir Gordon MacMillan of MacMillan and Knap, KCB KCVO CBE DSO MC LLD: The Babe, (1897–1986). FastPrint Publishing, Peterborough. ISBN 978-178035-577-1.
As shown in the image of his grave