- American Public Transportation Association records, 1898/19991
- Charles Lietwiler transportation collection, 1903/20051
- David A. Edwards papers, 1970/20111
- Francis Francois papers, 1967/2004, bulk 1980/20041
- George Mason University "Frankly Speaking" radio show records, 1980/19841
- Henry O. Lampe papers, 1936/19891
- James A. Wilding Metropolitan Washington Airports Authority notebooks, 1974/20031
- Jonathan Gifford transportation collection, 1919/19991
- Martin Wohl papers, 1919/20001
- Partners for Livable Communities records, 1960/2012, bulk 1970/20101
- William L. Mertz transportation collection, 1895/19951