- "More Than the Sum of Our Body Parts: An Exhibit by CARY, 1992-1993", 1934/20001
- "Smart" Road Citizen's Advisory Committee Records, 1993/19971
- 125th Anniversary Flag, 19971
- A. J. Davis Family Collection, 1874/2007, bulk 1874/19071
- A. Jane Duncombe Architectural Papers, 1952/20021
- Abbye A. Gorin Architectural Collection, 1940/2006, bulk 1995/20061
- Al Gross Papers, 1909/20001
- Alfred C. Payne Collection, 1917/20031
- Alleghany Chapter, National Society of the Daughters of the American Revolution Records, 1890/20221
- Alliance of Women in Architecture (AWA) Records, 1992/19981
- American Egg Board Collection, 1974/20041
- American Work Horse Museum Collection, 1971/19991
- Andrea Maxine Lucas Architectural Collection, 1980/20031
- Ann A. Hertzler Collection, 1863/2013, bulk 1974/20001
- Anna P. Sokolina Architectural Collection, 1924/20191