- Alexandria History Collection (MS240), 1767/200817
- Alexandria Library Company Records (MS002), 1794/20075
- Cazenove Family Papers (MS212), 1786/19705
- Daniel O'Sullivan Collection (MS141), 1850/19123
- Eleanor Lee Templeman Collection (MS061), 1810/19901
- Helen Norris Cummings Papers (MS072), 1865/19492
- James E. Foley Railroad Collection (MS405), 1869/20021
- James S. Hallowell Collection (MS132), 1840/18711
- Penny C. Morrill Collection (MS104), 1970/19801
- Sangster Papers (MS294), 1853/18912
- Sherwood Farm Papers (MS100), 1845/19301
- St. John's Academy Records (MS004), 1833/18993
- The Virginia American Water Company Collection (MS103), 1866/19882
- William Gregory Family Papers (MS417), 1771/19932