The vessel was recommissioned into the Royal Canadian Navy on 2 October 1939 during World War II, once again becoming HMCS Acadia and given the pennant number Z00 on the Atlantic coast. She was first used as a training ship for HMCS Stadacona, a shore establishment at Halifax. From May 1940 to March 1941 she saw active use as a patrol ship off the entrance of Halifax Harbour, providing close escort support for small convoys entering and leaving the port from the harbour limits at the submarine nets off McNabs Island to the "Halifax Ocean Meeting Point". After a refit, Acadia was assigned in mid-1941 for use as an anti-aircraft training ship and serving as a gunnery training vessel for crews of the Defensively Equipped Merchant Ships (DEMS) fleet. In June 1944, Acadia was assigned to the training base HMCS Cornwallis and stationed at the nearby port of Digby, Nova Scotia where she was used for gunnery training. The ship was decommissioned on 3 November 1945. The name HMCS Acadia continued in use as a Royal Canadian Sea Cadets training centre at Cornwallis, Nova Scotia beginning in 1956 until its closure in 2022.
S.S. Acadia. Canadian Register of Historic Places. Retrieved 26 August 2012.
http://www.historicplaces.ca/en/rep-reg/place-lieu.aspx?id=12741&pid=0
Mercantile Navy List 1914. - Mercantile Navy List. London: Registrar General of Shipping and Seamen. 1914. p. 3 – via Memorial University of Newfoundland. https://www.crewlist.org.uk/data/viewimages?name=Acadia&year=1914&submit=Enter
Mercantile Navy List 1930. - Mercantile Navy List. London: Registrar General of Shipping and Seamen. 1930. p. 3 – via Memorial University of Newfoundland. https://www.crewlist.org.uk/data/viewimages?&name=Acadia&steamsail=Steam&submit=Enter&year=1930
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
"CSS Acadia". Maritime Museum of the Atlantic. Retrieved 2 February 2025. https://maritimemuseum.novascotia.ca/what-see-do/exhibits/css-acadia
Barr 1987, p. 15. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Maginley & Collin give the ship 1,700 hp (1,300 kW).[7]
Barr 1987, p. 15. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Barr 1987, p. 16. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
"CSS Acadia". Maritime Museum of the Atlantic. Retrieved 2 February 2025. https://maritimemuseum.novascotia.ca/what-see-do/exhibits/css-acadia
Maginley & Collin 2001, p. 102. - Maginley, Charles D.; Collin, Bernard (2001). The Ships of Canada's Marine Services. St. Catharines, Ontario: Vanwell Publishing Limited. ISBN 1-55125-070-5.
Barr 1987, p. 60. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Barr 1987, p. 17. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Royal Canadian Navy. - "HMCS Acadia". Government of Canada. 18 October 2022. Retrieved 2 February 2025. https://www.canada.ca/en/navy/services/history/ships-histories/acadia.html
Johnston et al. 2010, p. 400. - Johnston, William; Rawling, William G. P.; Gimblett, Richard H.; MacFarlane, John (2010). The Seabound Coast: The Official History of the Royal Canadian Navy, 1867–1939 (PDF). Vol. 1. Toronto: Dundurn Press. ISBN 978-1-55488-908-2. https://publications.gc.ca/collections/collection_2020/mdn-dnd/D2-132-1-2010-eng.pdf
Royal Canadian Navy. - "HMCS Acadia". Government of Canada. 18 October 2022. Retrieved 2 February 2025. https://www.canada.ca/en/navy/services/history/ships-histories/acadia.html
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
"CSS Acadia". Maritime Museum of the Atlantic. Retrieved 2 February 2025. https://maritimemuseum.novascotia.ca/what-see-do/exhibits/css-acadia
Barr 1987, p. 17. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Barr 1987, p. 15. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
"CSS Acadia". Maritime Museum of the Atlantic. Retrieved 2 February 2025. https://maritimemuseum.novascotia.ca/what-see-do/exhibits/css-acadia
Barr 1987, p. 15. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
"CSS Acadia turns 100 today". The Marine Curator. Maritime Museum of the Atlantic. 8 May 2013. http://marinecurator.blogspot.ca/2013/05/the-museums-css-acadia-turns-100-today.html
Barr 1987, p. 18. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Meehan 2004a, p. 92. - Meehan, O. M. (January 2004). "Chapter II: The Hydrographic Survey of Canada from its Formation to the First World War 1904-1914". The Northern Mariner. 14 (1): 43–103. doi:10.25071/2561-5467.521. ISSN 2561-5467. https://doi.org/10.25071%2F2561-5467.521
Meehan 2004a, p. 93. - Meehan, O. M. (January 2004). "Chapter II: The Hydrographic Survey of Canada from its Formation to the First World War 1904-1914". The Northern Mariner. 14 (1): 43–103. doi:10.25071/2561-5467.521. ISSN 2561-5467. https://doi.org/10.25071%2F2561-5467.521
Meehan 2004b, pp. 107, 109. - Meehan, O. M. (January 2004). "Chapter III: The Hydrographic Survey of Canada from the First World War to the Commencement of the Canadian Hydrographic Service, 1915-1927". The Northern Mariner. 14 (1): 105–158. doi:10.25071/2561-5467.522. ISSN 2561-5467. https://doi.org/10.25071%2F2561-5467.522
Johnston et al. 2010, p. 274. - Johnston, William; Rawling, William G. P.; Gimblett, Richard H.; MacFarlane, John (2010). The Seabound Coast: The Official History of the Royal Canadian Navy, 1867–1939 (PDF). Vol. 1. Toronto: Dundurn Press. ISBN 978-1-55488-908-2. https://publications.gc.ca/collections/collection_2020/mdn-dnd/D2-132-1-2010-eng.pdf
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
Johnston et al. 2010, pp. 404, 506. - Johnston, William; Rawling, William G. P.; Gimblett, Richard H.; MacFarlane, John (2010). The Seabound Coast: The Official History of the Royal Canadian Navy, 1867–1939 (PDF). Vol. 1. Toronto: Dundurn Press. ISBN 978-1-55488-908-2. https://publications.gc.ca/collections/collection_2020/mdn-dnd/D2-132-1-2010-eng.pdf
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
Armstrong 2002, p. 80. - Armstrong, John Griffith (2002). The Halifax Explosion and the Royal Canadian Navy. Vancouver, British Columbia: UBC Press. ISBN 0-7748-0891-8.
Johnston et al. 2010, p. 692. - Johnston, William; Rawling, William G. P.; Gimblett, Richard H.; MacFarlane, John (2010). The Seabound Coast: The Official History of the Royal Canadian Navy, 1867–1939 (PDF). Vol. 1. Toronto: Dundurn Press. ISBN 978-1-55488-908-2. https://publications.gc.ca/collections/collection_2020/mdn-dnd/D2-132-1-2010-eng.pdf
Hadley & Sarty 1991, p. 280. - Hadley, Michael L.; Sarty, Roger (1991). Tin-pots and Pirate Ships: Canadian Naval Forces and German Sea Raiders 1880–1918. Montreal & Kingston: McGill-Queen's University Press. ISBN 0-7735-0778-7.
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
Meehan 2004c, p. 205. - Meehan, O. M. (April 2004). "Chapter IV: The Hydrographic Survey of Canada from 1928 to the Commencement of the Second World War". The Northern Mariner. 14 (2): 159–244. doi:10.25071/2561-5467.523. ISSN 2561-5467. https://doi.org/10.25071%2F2561-5467.523
Barr 1987, p. 19. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Barr 1987, p. 18. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
"From Chicago to Berlin and Back in the "Untin Bowler"" (PDF). Chicago Tribune. 30 June 1929. http://archive.lib.msu.edu/DMC/tribune/trib06301929/trib06301929003.pdf
Meehan 2004c, p. 161. - Meehan, O. M. (April 2004). "Chapter IV: The Hydrographic Survey of Canada from 1928 to the Commencement of the Second World War". The Northern Mariner. 14 (2): 159–244. doi:10.25071/2561-5467.523. ISSN 2561-5467. https://doi.org/10.25071%2F2561-5467.523
Meehan 2004c, p. 205. - Meehan, O. M. (April 2004). "Chapter IV: The Hydrographic Survey of Canada from 1928 to the Commencement of the Second World War". The Northern Mariner. 14 (2): 159–244. doi:10.25071/2561-5467.523. ISSN 2561-5467. https://doi.org/10.25071%2F2561-5467.523
Macpherson & Barrie 2002, pp. 17, 316. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
The patrol vessel HMCS Malaspina used the same pennant number on the Pacific coast.[28] /wiki/HMCS_Malaspina
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
"Official History of HMCS Acadia (Sea Cadets)". CFB Esquimalt Naval Military Museum. Retrieved 2 February 2025. https://navalandmilitarymuseum.org/archives/articles/ship-histories/hmcs-acadia-sea-cadets/
Chandler, Felishia (25 June 2022). "Cadet training centre in Cornwallis Park closing after program overhaul". CBC News. Retrieved 2 February 2025. https://www.cbc.ca/news/canada/nova-scotia/cornwallis-park-training-centre-closes-1.6495991
Arbuckle 1987, p. IX. - Arbuckle, J. Graeme (1987). Badges of the Canadian Navy. Halifax, Nova Scotia: Nimbus Publishing. ISBN 0-920852-49-1.
Arbuckle 1987, p. 4. - Arbuckle, J. Graeme (1987). Badges of the Canadian Navy. Halifax, Nova Scotia: Nimbus Publishing. ISBN 0-920852-49-1.
The official blazon is "Azure, a seme-de-lis or, the head and shoulders of a young women wearing a cap and scarf of the period (1755) all in colour of a cameo stone".[32]
Barr 1987, p. 19. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Maginley & Collin 2001, p. 102. - Maginley, Charles D.; Collin, Bernard (2001). The Ships of Canada's Marine Services. St. Catharines, Ontario: Vanwell Publishing Limited. ISBN 1-55125-070-5.
Barr 1987, p. 20. - Barr, P. (July 1987). "CSS 'Acadia' 75 Years of Service". International Hydrographic Review. LXIV (2). Monaco: 15–21. https://journals.lib.unb.ca/index.php/ihr/article/download/23390/27165/35712
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
S.S. Acadia. Canadian Register of Historic Places. Retrieved 26 August 2012.
http://www.historicplaces.ca/en/rep-reg/place-lieu.aspx?id=12741&pid=0
Macpherson & Barrie 2002, p. 17. - Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (Third ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN 1-55125-072-1.
"CSS Acadia". Maritime Museum of the Atlantic. Retrieved 2 February 2025. https://maritimemuseum.novascotia.ca/what-see-do/exhibits/css-acadia
"CSS Acadia". Maritime Museum of the Atlantic. Retrieved 2 February 2025. https://maritimemuseum.novascotia.ca/what-see-do/exhibits/css-acadia
Williams, Cassie (5 December 2017). "The only ship still afloat that survived the Halifax Explosion is rusting away". CBC News. Canadian Broadcasting Corporation. Retrieved 2 February 2025. https://www.cbc.ca/news/canada/nova-scotia/css-acadia-halifax-explosion-rusting-away-1.4431946
Quon, Alexander (6 September 2018). "The slow destruction of the CSS Acadia in Halifax Harbour". Global News. Retrieved 2 February 2025. https://globalnews.ca/news/4425746/slow-destruction-css-acadia/
Johnson, Kathy (18 November 2021). "'Close to him again': Walking same decks as her grandfather special for Shelburne labourer on historic ship". PNI Atlantic News. Retrieved 2 February 2025. https://www.saltwire.com/atlantic-canada/close-to-him-again-walking-same-decks-as-her-grandfather-special-for-shelburne-labourer-on-historic-ship-100659558
Williams, Cassie (5 December 2017). "The only ship still afloat that survived the Halifax Explosion is rusting away". CBC News. Canadian Broadcasting Corporation. Retrieved 2 February 2025. https://www.cbc.ca/news/canada/nova-scotia/css-acadia-halifax-explosion-rusting-away-1.4431946
"Halifax feline Erik the Red keeps order on the boardwalk". CTV News. 7 August 2013. Retrieved 17 August 2015. http://atlantic.ctvnews.ca/halifax-feline-erik-the-red-keeps-order-on-the-boardwalk-1.1401296
Ray, Carolyn (14 August 2015). "Erik the Red to retire from rodent control officer duties on CSS Acadia". CBC News. Retrieved 17 August 2015. http://www.cbc.ca/news/canada/nova-scotia/erik-the-red-to-retire-from-rodent-control-officer-duties-on-css-acadia-1.3191288
Roberts, Patrick (20 August 2014). "Canadian Rodent Control Officers". Purr 'n' Fur. Retrieved 17 August 2015. http://www.purr-n-fur.org.uk/featuring/mus01.html
Ray, Carolyn (14 August 2015). "Erik the Red to retire from rodent control officer duties on CSS Acadia". CBC News. Retrieved 17 August 2015. http://www.cbc.ca/news/canada/nova-scotia/erik-the-red-to-retire-from-rodent-control-officer-duties-on-css-acadia-1.3191288
Colley, Sherri (5 August 2014). "Maritime Museum cat Erik the Red is back home". The Chronicle Herald. Retrieved 17 August 2015. http://thechronicleherald.ca/metro/1227416-maritime-museum-cat-erik-the-red-is-back-home
Ray, Carolyn (14 August 2015). "Erik the Red to retire from rodent control officer duties on CSS Acadia". CBC News. Retrieved 17 August 2015. http://www.cbc.ca/news/canada/nova-scotia/erik-the-red-to-retire-from-rodent-control-officer-duties-on-css-acadia-1.3191288
Ray, Carolyn (14 August 2015). "Erik the Red to retire from rodent control officer duties on CSS Acadia". CBC News. Retrieved 17 August 2015. http://www.cbc.ca/news/canada/nova-scotia/erik-the-red-to-retire-from-rodent-control-officer-duties-on-css-acadia-1.3191288
Munroe, Ian (3 August 2017). "Erik the Red, beloved cat on Halifax ship, dies after brief illness". CBC News. Retrieved 6 September 2018. https://www.cbc.ca/news/canada/nova-scotia/css-acadia-cat-erik-the-red-dies-halifax-rodent-control-1.4234290