Harold Hanne Elarth (b. 1885) was a U. S. Army officer who served in the Philippine Constabulary and rose to the rank of Lt. Col. The collection contains research for Elarth's book on the Philippine Constabulary, Philippine Constabulary Officers Association history, a diary, letterpress copybooks, a Philippine Constabulary manual, photographs, and correspondence.
John Arthur Gamber was an Oregonian who participated in the Spanish American War. The collection comprises correspondence with Mary McAlister, whom Gamber later married in 1904, as well as diaries, photographs, and mementoes relating to the Philippines Campaign during the Spanish American War.
William Fursuar Wellington (1835 - ) served as a private in Company K, 42d Regiment, Wisconsin Volunteer Infantry during the America Civil War. The collection (1864-1865) consists of correspondence to his wife, a photograph, and discharge papers.