Collection
- I. Rowe Jr. commonplace book, 1783/17862
- Illustrated Manuscript Confessory for Deaf People, 1770/17901
- Institute for the History of Technology and Industrial Archaeology Records, 1875/2005, bulk 1980/20051
- International Association for Identification Records, 1842/2012, bulk 1910/19591
- Irvine-Saunders Family Papers 1745-1910 Inclusive15