Collection
- Inge Horton Architectural Collection2
- Institute for the History of Technology and Industrial Archaeology Records10
- International Association for Identification Records4
- Ira E. Robinson Papers1
- Irvine-Saunders Family Papers 1745-1910 Inclusive8
- Isaac & Josiah Williams Brick Company, Account Books1
- Isaac Ambler Papers1
- Isaac B. Smith, Farmer and Music Teacher, Newspaper Clippings and Other Material1
- Isaac Campbell Account Book2
- Isaac Caruthers, Monroe County Merchant, Store and Tavern Ledgers1
- Isaac French letter1
- Isaac Horne Ledgers2
- Isabella Furnace Account Book (Page County, Va.)2