Collection
- Dime Novels Collection, 1861-1942, bulk 1873-19271
- Donald Brenham "D.B." McKay collection, 1880-1980, Date acquired: 12/13/20101
- Dr. Heather Frazer and Dr. John O'Sullivan Research Collection, 1871 - 20061
- Dr. John O'Sullivan Faculty Papers, 1831-1999, bulk 1940-19801
- Dr. Mark F. Boyd Collection, 1516-1965, Date acquired: 04/03/1967, Date acquired: 04/01/19681
- Dr. Samuel A. Portnoy Faculty Papers Collection, 1886-20031
- Dr. Walter Wadepuhl Faculty Papers Collection, 1781-19891
- Eartha M. M. White Papers, 1831-19741
- Edith Daly Papers of Eugene Elliott, bulk 1849-19801
- Edward Conradi Collection, 1897-1981, bulk 1924-19441
- El Círculo Cubano (Cuban Club) records, 1852-1989, Date acquired: 00/00/2000, bulk 1902-19591
- El Porvenir records, 1888-19391
- Elena Kurstin Cuban Memorabilia Collection, date unknown1
- Elin Ingeborg Larson Collection, 1899-19691
- Ella Scoble Opperman Papers, 1719-1963, bulk 1900-19631
- Elliot Cross and James A. Cross Civil War Collection, 1861-2008, bulk 1861-18881
- Ellis, Thomas Howard, Papers, 1866-1937, Date acquired: 09/00/19811
- Erasmus H. Tomlinson Papers, 1893-1958, bulk 1906-19441
- Ernest Ayer Ponder collection, 1895-19941
- Ernst von Dohnányi Music Collection, 1897-19601