- Baba Freeman Reston, Virginia collection, 1966/200713
- Baba Freeman Reston, Virginia, collection, 1966/20071
- Barbara Abernathy papers, 1986/200520
- Barbara Brodie Nursing History Collections, 1900/20001
- Barbara Cary Johnston Willard Scrapbook, 1800/20061
- Barbara H. Dunn Papers, 1970/200310
- Barbara Howe, History Professor, Research Papers regarding the History of the College of Arts and Sciences, 1870/2005, bulk 1990/20053
- Barbara Lustbader New York City playbills collection, 1957/201213
- Barbara McKnight Benham papers, 1966/20212
- Barbara Tedford, English Professor, Papers, 1980/20001
- Barnette Collection, Lawyer, Businessman, Educator, Philanthropist, and Chairman Emeritus of Bethlehem Steel Corporation, 1905/2020127
- Barton Myers III Papers, 1988/20062
- Base Hospital No. 41 collection, 1905/20091
- Baseball records, 1908/20241
- Beaven brass rubbings collection, 1900/19991