According to his attestation papers dated February 10, 1916 at Mimico, Arthur Carr of Mimico was born on June 24, 1886 in Branton, Cantley Parish, England. He listed his mother, Mrs. Sarah Carr, Branton, Cantley Parish, England as his next of kin. He was a fireman and an active member of the 12th Regiment, York Rangers. He was 29 years and 8 months of age and stood 5 feet 10 inches high. He had green eyes, fair hair and complexion. He was a member of the Church of England.
In the 1921 Toronto City directory he is listed as an engineer living on the east side of Church Street, Mimico.