This must be Charles Gillman of Humber Bay and not "S' as noted in the Mimico Honour Roll.
According to his attestation papers dated January 31, 1916 at Mimico, Charles Edward Gillman, Humber Bay, Ontario was born on July 1, 1895 in Etobicoke, Ontario. He listed his father George Gillman, Humber Bay, Ontario as his next of kin. He was a labourer and had no previous military experience. He was 20 years and 7 months of age and stood 6 feet 1 inches tall. He had blue eyes, brown hair and a dark complexion. He was a Baptist.