Louis Wilfred Mullen was born in Cove Head, Prince Edward Island, in April 1896. Mullen previously was a member of the militia before he enlisted in February 1916 in Halifax, Nova Scotia, with the No. 11 Overseas Field Artillery Brigade Ammunition Column. He served overseas with the 43rd Battery until his return to Canada at the end of the war. The collection currently consists of his photograph album containing over one hundred photographs, a letter, postcards, and other miscellaneous personal items.