- Alexandria Drafting Company1
- Allen, Lane & Scott1
- Atkins, Oliver F., 1916-19771
- Baptie, Charles1
- Brooks, Margaret1
- C-SPAN Corporation1
- District of Columbia. Department of Public Works1
- Dykstra, Vergil H., 1925-20101
- Fox, Mary Elsie, 1923-19941
- George Mason University. Libraries1
- George Mason University. Libraries. Special Collections Research Center1
- Handy, Levin C. (Levin Corbin), 1855-19321
- Jackson, William Henry, 1843-19421
- Kincannon, Lois Claire1
- Knapp, Frederick Newman, 1821-18891