According to his attestation papers dated January 24, 1916 at Mimico, Archibald Donaldson of Mimico, Ontario was born on June 30, 1871 in Perthshire, Scotland. He listed his wife Mrs. Elizabeth Donaldson, Mimico as his next of kin. He was a road foreman and had previous military experience with the Argyle and Sutherland Highlanders. He was 44 years and 7 months of age and stood 5 feet 9 inches tall. He had blue eyes, dark hair and complexion. He was a Presbyterian.
According to the 1911 census Archibald and his wife Bessie are living on the Lake Shore Road, Mimico. They emigrated to Canada from Scotland in 1910.
In the 1914 Toronto City directory he is listed as a builder living on the north side of Melrose Avenue, Mimico.
In the 1921 Toronto City directory he is listed as living on the north side of Victoria Street, Mimico.