Source: Per post by Allan Miller at 18th Battalion Facebook Group
Family Search: When Private John Wesley Northwood was born on 20 April 1898, in Lambton, Ontario, Canada, his father, Jabez Northwood, was 32 and his mother, Josephine Cook, was 31. He married Pearl Lizetta Terry on 6 February 1924, in Detroit, Wayne, Michigan, United States. They were the parents of at least 1 son and 1 daughter. He lived in Thedford, Lambton, Ontario, Canada in 1916. He registered for military service in 1916. In 1916, at the age of 18, his occupation is listed as student in Thedford, Lambton, Ontario, Canada. He died on 27 March 1962, in Detroit, Wayne, Michigan, United States, at the age of 63.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 