- Alexandria Bicentennial Commission (MS085), 1937/19795
- Alexandria Black Family Reunion Digital Collection, 1937/20052
- Alexandria History Collection (MS240), 1767/20088
- Alexandria Library Board Records (MS416), 1937/20205
- Alexandria Library Company Records (MS002), 1794/200715
- Alexandria Library Records (MS098), 1937/20132
- Alfred A. Bolton, Papers regarding History of Management and Other Material, 1900/200736
- Alfred C. Payne Collection, 1917/200362
- Alice Langley Hsieh Papers, 1943/19781
- Alice McMechen, Collector, Papers of Artist Alvena V. Seckar, 1945/20082
- Aliquando Press Collection, 19681
- Allan Blank Papers, 1958/20093
- Alleghany Chapter, National Society of the Daughters of the American Revolution Records, 1890/202212
- Alliance of Women in Architecture (AWA) Records, 1992/19982
- Allison Kenneth Scribner Papers, 1946/19761