Bertie-Clay was born in
Chhindwara to Maj.-Gen. Edward Bertie Clay of the
Bengal Staff Corps and Sarah Maria (
née Attwood). His great-grandfather was Rear Admiral
Edward Sneyd Clay (1768–1846). He served as an officer in the
British Army from at least 6 June 1887 when, as a
Lieutenant in the
Royal Artillery, he was seconded to the Indian Ordnance Department of the
Indian Army. He was promoted to the rank of
Captain on 18 May 1892 whilst still on secondment, this promotion being later postponed to 25 May. Bertie-Clay received promotion to
Major on 21 December 1901, remaining with the Indian Ordnance Department. By this point he had transferred to the
Royal Garrison Artillery (RGA) which had been formed in 1899 as a sub-branch of the Royal Artillery to manage the heavy guns. Bertie-Clay was promoted to the rank of Lieutenant-Colonel on 18 May 1912, remaining with both the Ordnance Department and the RGA. During the
First World War, on 21 June 1917, Bertie-Clay was put on a "Special Appointment", receiving pay equivalent to a
Staff Lieutenant (1st class) whilst doing so. His special appointment pay was upgraded to "Class GG" on 23 November 1918 and he relinquished both the appointment and pay on 24 July 1919. Bertie-Clay was awarded the
French Croix de Guerre on 21 August 1919 at which point he had returned to the RGA and was once again seconded to the Indian Ordnance Department. Bertie-Clay died on 17 October 1938, having lived for some time at Villa La Pensée in
Papara,
Tahiti,
Society Islands. ==Dum dum bullet==