A four-volume illustrated memoir, in scrapbook form, of the World War I military service of Humphrey M. Barbour, an artillery officer in the American Army's 42nd (Rainbow) Division. In addition to a 220-page typescript memoir the volumes contain close to 1000 photographic prints, postcards, published halftones, maps, manuscript military records, and drawings relating to Barbour's service, 1917 to 1919.

The correspondence and other papers of the American Lenore Mooney (1859-1941), dating especially from her time as a relief worker in Paris during World War I. There are many letters to Mooney from French soldiers and others victimized by the war, as well as a substantial correspondence with nephew Charles E. Bayly, Jr., an ambulance driver with the American Field Service who subsequently served as sous-lieutenant in the French army.