Collection
- Institute for the History of Technology and Industrial Archaeology Records6
- International Association for Identification Records1
- Ira E. Robinson Papers1
- Irvine-Saunders Family Papers 1745-1910 Inclusive8
- Isaac Ambler Papers1
- Isaac Campbell Account Book2
- Isaac Caruthers, Monroe County Merchant, Store and Tavern Ledgers1
- Isaac Horne Ledgers5
- Isabella Furnace Account Book (Page County, Va.)2