Source: 18th Battalion Nominal Roll, April 1915.
Find-A-Grave
Family Search: When Alexander Ogilvie Sellars was born on 4 December 1889, in Dundee, Forfarshire, Scotland, United Kingdom, his father, Robert Sellars, was 33 and his mother, Catherine Drummond, was 19. He lived in Detroit Ward 17, Detroit, Wayne, Michigan, United States in 1920. He registered for military service in 1915. In 1914, at the age of 25, his occupation is listed as labourer. He died on 6 March 1970, in Detroit, Wayne, Michigan, United States, at the age of 80.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 