Abstract William E. Boeing, Sr. (1881-1956) was an aviation pioneer and founded The Boeing Company in 1916. The collection holds textual materials, such as correspondence, philately, business-related materials, clippings, and ephemera, as well as photographs and illustrations related to his personal and business life, circa 1783-2008. Major areas of interest include family photographs and extensive personal and business-related correspondence.

Abstract The Emile Chourré and Chourré Family Papers is comprised of documents and scrapbooks, photographic prints and photograph albums, and assorted ephemera primarily pertaining to the life and military career of Lieutenant Commander Emile Chourré (1894-1938). Major topics include Chourré's military service, especially while stationed in Coco Solo, Panama; his service as a U.S. Naval announcer for the 1929-1931 and 1933-1934 National Air Races; and family (immediate and extended) photographs.

Abstract 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.