According to his attestation papers dated November 3, 1915 at Toronto, Ernest Galt Coxhead, Mimico Beach, was born on October 30, 1897 in Mimico Beach. He listed his mother Eliza Coxhead, Mimico Beach as his next of kin. He was a grocery clerk and had no previous military experience. He was 18 years old and stood 5 feet 8 inches tall. He had brown eyes, dark brown hair and a medium complexion. He had a small scar below his left eye and one on his left knee. He was a member of the Church of England.
In the 1921 Toronto City directory he is listed as a builder living with his father Caesar Coxhead on the corner of Stanley and Superior Avenues, Mimico.