- Alexander Haight family collection, 1764/19761
- American Public Transportation Association records, 1898/19991
- C-SPAN records, 1809/2012, bulk 1978/20121
- Clarence J. Robinson papers, 1897/19781
- Edith Malleis nursing student scrapbook, 1924/19271
- John Rapp, Jr. photograph collection, 1920/19291
- Martin Wohl papers, 1919/20001
- Randolph Lytton historic Washington, D.C. postcards and photographs collection, 1905/19681
- Robert and Wilva Breen papers, 1831/20001
- Saint Andrew's Society collection, 1861/19951
- Thomas Griest World War I collection, 1899/19441