- "My Maryland" operetta stage guide and score manuscripts, 19291
- Adams T. Rice papers, 1922/19602
- Alexander Haight family collection, 1764/19761
- Alexander Haight family collection, 1764/19771
- American Political Items Collectors collection, 1895/19881
- American Public Transportation Association records, 1898/19991
- American voyage photograph albums, 1904/19391
- Armistead L. Boothe collection, 1920/19832
- Arnold Sundgaard papers, 1925/19882
- Arthur E. Scott photograph collection, 1910/19761
- Beardwood and Whipple family travel photograph albums, 1931, bulk 1929/19311
- Beaven brass rubbings collection, 1900/19991
- C-SPAN records, 1809/2012, bulk 1978/20122
- C. Harrison Mann, Jr. Map Collection, 1579/19611
- C. Harrison Mann, Jr. map collection, 1579/19611