Herman Butler, originally of Belleville, Washington, served as a pilot during World War I and after with the U.S.A. School of Aerial Photography at Langley Field. The collection contains materials relating to the Butler's wartime and postwar service.

Hamilton "Ham" Coolidge (1895-1918) was one of many young men from wealthy New England families who enlisted during World War I. The collection contains materials related to Captain Coolidge's service a pilot with the U.S. Army Air Service 94th Aero Squadron. Coolidge achieved Ace status, was awarded the Distinguished Service Cross, and was killed in action.

Charles Wallace Drew (1896-1979) served as a pilot with the U.S. Army Air Service during World War I, and later worked as an airport engineer. The collection contains correspondence, photographs, clippings, and other materials relating to Drew's wartime experience.

The collection contains materials relating to Halden H. Emrick's personal life and varied aviation career as a pilot's instructor during World War I, chief pilot for Curtiss-Wright and other aircraft companies, and a stunt pilot during the heyday of barnstorming in the 1920s and 1930s.

Collection of photographs, scrapbooks, clippings, and assorted ephemera from the Nordhoff and Dunnam families, who served as pilots in World War I and World War II and later founded the Bellevue Airport.

Sidney Van Wyck Peters of Seattle, Washington served with the U.S. Army Air Service, 24th Aero Squadron during World War I. The collection contains a scrapbook album containing photographs and paper ephemera related to his service overseas.

The collection contains a World War I era scrapbook photograph album assembled by Edward I. Sproull (1897-1956) while in training at Ohio State University and subsequently serving as a pilot with the A.E.F. and the American Squadron of the French Military Air Force in France.