Philip Babcock served with the 88th Aero Squadron in the First World War. This Collection documents his life and the history of the squadron.

Errold G. Bahl (EGB, October 26, 1894 – October 26, 1930) was one of the early birds of aviation, an aircraft pilot, mechanic, barnstormer, and entrepreneur. He attended the School of Military Aeronautics, flew in Latin America, was a mentor to Lindbergh, and formed the Harding, Zook and Bahl Airplane Corporation. This collection includes material relating to his life in aviation, as well as the Harding, Zook and Bahl Corporation.

Elwyn Herbert Gibbon had a very distinctive career instructing Chinese how to fly. This Collection documents his life in aviation.

Louis E. Gordon was the mechanic on Amelia Earhart's trans-atlantic flight and later worked for TWA. This Collection relates to his life.

James Harvey Hester was a Stunt Flyer who was associated with the famous Hollywood Black Cats. He served in the USAAS at Kelly Field, TX briefly during WWI then returned to Venice. He was a test and stunt pilot in the southern California area between 1919 and 1925