- Al Gross Papers, 1909/20001
- Arthur M. Squires Papers, 1888/1987, bulk 1940/19871
- Avery-Abex Metallurgical Collection, 1920/19871
- Blake W. Corson, Jr., Papers, 1861/1984, bulk 1934/19791
- Christopher C. Kraft Papers, 1941/1998, bulk 1941/19821
- Clarence Trent Papers, 1958/19911
- Dan H. Pletta Papers, 1942/19961
- Don Fusaro Collection on R. Buckminster Fuller, 1963/20101
- Donald K. "Deke" Slayton Collection, 1974/19951
- Doris Zallen Papers, 1952/20161
- Dr. Richard Zallen Papers, 1940/20071
- Earl A. Thornton Papers, 1885/20001
- Edward C. Polhamus Papers, 1962/19861
- Evert B. Clark Papers, 1948/19881
- F. Edward McLean Papers, 1950/19851