Source: Via Flickr account of John P. Sargeant. Original source via Allan Miller.
Note that this soldier enlisted twice. The first enlistment under reg. no. 141972 he gave his date of birth as 1872. He enlisted later under reg. no. 868042 and give is date of birth as 1875 to become eligible to serve as he was over-age.
Photo credit to John P. Sargeant.
War Diary of the 18th Battalion CEF 