- Abbye A. Gorin Architectural Collection, 1940/2006, bulk 1995/20061
- Albert L. Sturm Papers, 1904/1988118
- Alberta Pfeiffer Architectural Collection, 1929/19766
- Alfred C. Payne Collection, 1917/200358
- Alleghany Chapter, National Society of the Daughters of the American Revolution Records,, 1890/202212
- Ann A. Hertzler Collection, 1863/2013, bulk 1974/20002
- Ann Eve Moss Papers, 1920/19901
- Anne H. Price Yates Papers, 1904/1985, bulk 1975/19852
- Anne Price Yates Papers II, 1898/20052
- Antoine Gaujot and Julien E. Gaujot Papers, 1840/19994
- Architectural League of New York: Archive of Women in Architecture Records, 1892/197618
- Arthur M. Squires Papers, 1888/1987, bulk 1940/1987514
- Arthur Sibold Collection, 1964/19751
- Association for Women in Architecture Records, 1928/199210
- Association for the Preservation of Virginia Antiquities, Montgomery County Branch Papers, 1754/1996, bulk 1958/198311