This must be Douglas Ferrie as there is no other entry for a G. H. Ferrie.
According to his attestation papers dated December 18, 1916 at Yorkton, Saskatchewan, Douglas Ferrie of Toronto, was born on November 18, 1895 in Churchgrislay, Derbyshire Co., England. He listed his father James Ferrie, Southampton Street, Mimico as his next of kin. He was a farmer and had no previous military experience. He was 21 years old and stood 5 feet 11 inches tall. He had blue eyes, brown hair and a fair complexion. He was a Methodist.
His brother Lionel also enlisted.