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.

The Paul A. Ludwig Military Aviation Photograph Collection contains 2382 photographic prints and negatives with a very small amount of textual materials collected by Paul A. Ludwig and ranging from the late 1910s through the early 1980s. The bulk and strength of the collection is photographs of World War II-era aircraft and squadrons. The collection is nearly all copy prints from a variety of institutions and dozens of private collections.