Source: T.O.S. December 1916 per War Diary.
Family Search: When Lieutenant Leslie William Gay KC was born on 26 January 1896, in Hamilton, Wentworth, Ontario, Canada, his father, John Buchanan Gay, was 45 and his mother, Emily May Donnelly, was 35. He married Winnifred May Wallace on 17 September 1927, in Hamilton, Hamilton-Wentworth, Ontario, Canada. He lived in Hamilton, Ontario, Canada for about 10 years. He registered for military service in 1916. In 1916, at the age of 20, his occupation is listed as law student in Toronto, York, Ontario, Canada. He died on 29 September 1958, in Hamilton, Wentworth, Ontario, Canada, at the age of 62.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 