Aerospace enthusiasts frequently collect themed memorabilia, including ephemeral material such as envelopes and stamps. Various governments and entities issue these at commemorative anniversaries and events. The Museum inevitably became a repository for such material over time. Although no longer in the Museum’s collecting scope, this these stamps, first day of issue envelopes, and other aerospace related postal material (aerophilately) make up this collection.

Richard M. Denbo was born on March 10, 1897 in Salt Lake City, Utah. Denbo served as an aviation engine mechanic. He transferred his interest as an auto mechanic to aircraft engines when he enlisted in the Army Air Corps in 1917. He was assigned to the 80th as Chauffeur-Mechanic in the 805th Aero Squadron in France and England between January 22, 1918, and June 5, 1919.

The collection contains 92 manuscripts, written/compiled between the early twentieth century and early twenty-first century. These manuscripts range from television and movie scripts to flight logs, accident report, personal recollections, and biographies/memoirs. Subjects include (but are not limited to) early flight, World War I, World War II, women avioators, air ships, and flight testing.

The Howard Waldorf Personal Papers containns materials relating to and/or written by Waldorf. He was a prominent aviation journalist in the San Francisco Bay area following his service as a test pilot in World War I.