- Alexandria History Collection (MS240), 1767/200818
- Alexandria Library Company Records (MS002), 1794/20073
- Cazenove Family Papers (MS212), 1786/19705
- Daniel O'Sullivan Collection (MS141), 1850/19121
- Edward L. Daingerfield Collection (MS121), 1886/19252
- Eleanor Lee Templeman Collection (MS061), 1810/19901
- Helen Norris Cummings Papers (MS072), 1865/19493
- James E. Foley Railroad Collection (MS405), 1869/20021
- Loeb Photography Collection (MS363), 1888/19412
- Penny C. Morrill Collection (MS104), 1970/19801
- R. H. Lancaster Lodge No. 1370, Grand United Order of Odd Fellows of the State of Virginia Records (MS076), 1890/19101
- Roberts United Methodist Church Records (MS048), 1877/19132
- Sangster Papers (MS294), 1853/18911
- Sherwood Farm Papers (MS100), 1845/19301
- St. John's Academy Records (MS004), 1833/18992