Collection
- Saint Andrew's Society collection2
- Samuel H. Yonge papers1
- Sheet Music Collection2
- Shenandoah Valley Legal Documents3
- Short Papers1
- Sir Jeffray Gilbert Notes2
- Somerville family papers1
- Stearns Family Papers3
- Steve Wolfe, Collector, Historical Newspapers2
- Stuart Family Papers2
- Surveying Collection2
- Surveyor's Field Books1
- Susan H. Godson Papers1