He was brevetted as a colonel in the Bengal Staff Corps on 10 June 1874.2
Simon Schaffer (2019), "Ideas Embodied in Metal", The Whipple Museum of the History of Science: Objects and Investigations, to Celebrate the 75th Anniversary of R. S. Whipple's Gift to the University of Cambridge, Cambridge University Press, pp. 130–153, ISBN 9781108498272 9781108498272 ↩
"Brevet" (PDF), The London Gazette, p. 4203, 28 August 1874 https://www.thegazette.co.uk/London/issue/24126/page/4203/data.pdf ↩