Collection
- Hank Hanft letters, 19192
- Hattie A. Abbott expense book, 18802
- Hiram Bedford diary, 18692
- Hubble family scrapbooks, ca. 1870s-1880s2
- Hugh Fred Cameron Photograph Album, 1898-19122
- Isaac S. Clough collection, 1856-18832
- J. B. Cooke collection, 18892
- James Galloway Antioch College Photograph Album, 1860-19102
- James M. K. Reed collection, [mid-19th century]2
- Jersey Shore, Pennsylvania, Boston, and Canada Travel Photograph Album, ca. 1893-19052
- John Frizell orderly book and account book, 1761-1780 (majority within 1761-1766)2
- John Hendrickson Yale Class Album, 18522
- John P. Cook Photograph Collection, ca. 1870s-19152
- John Williams account book, 18432
- Josephine Augustus journal, 1899-19042
- Josephine Dyer Varnum and John P. Varnum correspondence, 1872-18882
- Kate M. Young papers, 1860-18702
- Katherine S. Minor collection, 1859-18692
- L. A. Brown notebook and logbook, 1868-18692
- Leo Engleman cypher book, 1847-18482