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.

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.

Wilbur D. Kennedy, 1893-1943, was born in Cedar Rapids, Iowa and served as a pilot in the 12th Aero Squadron during World War I. Collection contains photographs, correspondence, military records, and other assorted materials relating to his World War I service.

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.

Floyd W. Shepard (approx. 1890-1966) served as a pilot with the U.S. Army Air Service late in World War I and in the postwar occupation. The collection contains materials relating to his training in the United States and his service overseas.