According to his attestation papers dated July 26, 1915 at Toronto, Louis Thomas Donville was born on April 5, 1894 at Toronto. He listed his father Walter Donville, Mimico, Ontario as his next of kin. He was a pianist and had no previous military experience. He was 21 years and 8 months of age and stood 5 feet 8 1/4 inches high. He had grey eyes, brown hair and a fair complexion. He had a scar on his forehead. He was Roman Catholic.
In the 1921 Toronto City directory he is listed as a musician and living on the west side of Milton Street, Mimico.