The series primarily consists of photographs taken of Russell Hellard and by Russell Hellard while serving in the Canadian Army during the Second World War as part of the No. 1 Wireless Signal Group of the Royal Canadian Corps of Signals. The series also includes a copy of Russell Hellard's military personnel file acquired from Library and Archives Canada, as well as some loose assorted documentation collected during his service. Finally, the series includes a copy of "Journey Down Under," a memoir written by George L. Drummond; a souvenir booklet about the history of the Number One Canadian Special Wireless Group; and a published book entitled, "The Invisible War: The Untold Secret Story of Number One Canadian Special Wireless Group," by Gil Murray.