Collection
- Lesley family papers, 1700-1950, bulk 1850-19501
- Levi Marrero Collection, bulk date unknown1
- Lopez-Portillo y Lancaster-Jones Collection, 1784-20231
- Marvin & Sybil Weiner Spirit of America Collection Pamphlets -- Speeches, 1746-19321
- Marvin and Sybil Weiner Spirit of America Collection -- Manuscripts, 1663 - 1977, Date acquired: 11/00/20121
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Almanacs, 1761-19071
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Congressional, 1764-1953, bulk 1764-19531
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Essays & Reports, 1745-19831
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Foreign Language, 1565-19421
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- French Revolution, 1778 - 1795, bulk 1789 - 17931
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Letters 1744-1904, 1744-19041
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Miscellaneous, 1755-19901
- Monticello Genealogy Records from Family Bibles, 1758-19681
- Oglesby Collection of 18th and 19th Century Papers, 1766-1850, Date acquired: 01/01/19611
- Olin Norwood Collection, 1621-1945, Date acquired: 03/28/19561
- Panton Leslie and Company Collection, 1739-1847, Date acquired: 00/00/19871
- Papers on Social Life in Cuba, 1520-18101
- Patterson Family papers, 1752-19021
- Paul A.M. Dirac Papers, 1788-19991
- Pintado, Vicente Sebastian, Papers, 1781-1842, Date acquired: 00/00/19861