Roger Charles McNally (1887-1922) joined the U. S. Army in 1917 and after World War I was sent to Italy to assist with the Army’s purchase of the airship Roma. The collection consists of clippings, photographs, and assorted ephmera related to Master Sergeant McNally's career in the Army Air Corps, and his death in the airshipRoma accident.

The Ray McPherson Boeing Test Pilot Collection documents the career and personal life of test pilot Ray McPherson. The collection contains visual materials, audiovisual materials, and textual documents that date from 1941 to 2010. These documents bring to light McPherson’s work in engineering and testing aircraft for the National Advisory Committee for Aeronautics (NACA) and the Boeing Company.

Richard J. McWhorter (1921-2007) was born in Idaho Falls, Idaho and had a long standing and multi-faceted interest in aviation, including owning and restoring vintage airplanes. The collection includes manuscript materials, ephemera, audio-visual materials, and approximately three hundred (300) photographs documenting the restoration of a Stearman C-3B (#NC7550), on display at The Museum of Flight, as well as a Stearman C-3R (#NC656K).

The Iva and Homer Metz Space Collection documents the careers of both Iva and Homer in aviation and the space industry. It follows their time with the U.S. Navy, the Boeing Company, North American Aviation, and at Cape Canaveral during the Apollo and Skylab programs.

Jerry Michaud (1924-1982) Michaud served in the United States Navy during World War II as a Naval pilot in the Pacific Theater. Thelma McGraw (1920-1996) She worked as a stewardess with United Airlines (UAL). The collection contains textual materials, black-and-white photographs, and ephemera associated with their 1942-1952 naval and commercial airline careers, respectively.