Contains two diaries that A.T. Henson wrote during his service in the Canadian military during World War I in Europe. The first diary covers September 7, 1917, to February 28, 1918, and the second covers March 1, 1918, to July 12, 1918. Also contains one World War I photograph album, including photographs, letters, and printed ephemera that Henson created and compiled to document his military service overseas. These materials are dated from 1915 to 1919.

Collection includes correspondence and other various papers that give information on George H. Johnson's experience on the Western Front as a part of the 1st Canadian Tunneling Company in World War I. The correspondence is scattered, a lot of it undated, and gaps between letters are evident. The other materials include newspaper clippings, booklets, and an empty scrapbook.