Minnie M. Boyd (1910-1998) was born in Four Lakes, Washington and was an avid aviator. This collection contains correspondence, organizational records, membership directories, photographs, clippings, printed materials, and ephemera related to the Ninety-Nines, Inc.,and gathered by Minnie M. Boyd during her time as a member.

Abraham Lincoln Brearcliffe, Jr. (1899-1984) was born in Washington state and worked for Boeing from 1930-1945. The collection features photographs, clippings and newsletters, foreman's materials, labor union membership books, and assorted ephemera from Brearcliffe's time at Boeing, most of which are almost exclusively from the war years (1941-1945).

The Charles Langmack Papers contains textual materials, scrapbooks, and photographs concerning the life and military career of Charles Langmack (1907-1999). Langmack was an early Oregon aviator, and this collection equally documents both his civilian and military aviation careers.