- "A Transportation Vision, Strategy, and Action Plan for the Nation's Capital" by Department of Public Works informational map, 19971
- American Public Transportation Association records, 1898/19991
- Charles Lietwiler transportation collection, 1903/20051
- Clarence A. Steele papers1
- David A. Edwards papers, 1970/20111
- Dulles Corridor Rail Association records, 1985/20111
- Francis Francois papers, 1967/2004, bulk 1980/20041
- George Mason University "Frankly Speaking" radio show records, 1980/19841
- Henry O. Lampe papers, 1936/19891
- Interstate history research project collection, 1986/19921
- James A. Wilding Metropolitan Washington Airports Authority notebooks, 1974/20031
- James J. McDonnell transportation collection1
- John R. Hamburg Transportation papers1
- Jonathan Gifford transportation collection, 1919/19991
- Loudoun Station collection, 2001/20031