I cannot find him. He features in a manslaughter case in Ireland and is given as "Eric Mackay Leslie" and RIC register gives him as "Eric M Leslie" born 1891 in England, and ex-Gordon Highlanders. Nothing in WO338
1891 Born England
1918 May 20. Commissioned 2nd Lt as Eric Leslie in Gordon Highlanders
1920 Nov 1. Joined ADRIC service no 929. Section Leader. H Coy from 5 Nov 1920
1921 Jan 28 Shot T/Cadet P M E Hall by accident
1921 Feb 5 Court martial for "Manslaughter" Not Guilty.
1921 May 21 Promoted DI.3and Intelligence Officer
1921 Sep 26 . Posted to L Coy & reverted to T/Cadet
1922 Jan 20. Discharged on demobilisation of ADRIC
1922 Marries Edna H Falkiner in Kensington. Odd thing is that the birth of the child gives the mother as Marcus. However Edna Hyam Marcus married Walter V Falkiner in 1912 in Fulham.
1923 Jan/Mar, Richard Walter Eric Mackay Leslie born in London , who gets married in South Africa in 1951. His mother is Marcus.
1923 Mar 29. An E M Leslie leaves UK for Cape Town with wife and child. He is born 1891. His address is Wynnstay Gdns, Kensington. He is a Planter intending to live in South Africa
1951 Married in Natal a "Richard Walter Eric Mackay Leslie" b1923 in England