According to his attestation papers dated July 17, 1916 at Berryfield (?), Christopher Derbyshire was born on August 11, 1895 in Blackburn, England. He listed his mother Harriett Derbyshire, 30 Bennington Street, Blackburn, England as his next of kin. He was a labourer and had no previous military experience. He was 20 years and 3 months of age and stood 5 feet 1 inch tall. He had blue eyes, medium hair and complexion. He had a scar from a burn on his right shoulder. He was a member of the Church of England.
Christopher appears in the 1911 census for Mimico living with is parents James and Harriett. He was working at a brickyard. His family had emigrated to Canada from England in 1910. However his attestation papers make it clear that his parents had moved back to England by 1916.