- Cavalry --United States2
- Ciphers2
- Composers--England2
- Cryptography --Great Britain2
- Diplomats2
- Editors--United States2
- Elevator (San Francisco, Calif.)2
- Frontier and pioneer life--Kansas2
- German Americans--Texas2
- Gold mines and mining--Idaho--Boise County2
- Indians of North America--Colorado2
- Indians of North America--Treaties2
- Intelligence service --Great Britain2
- Manuscripts--Collectors and collecting--Great Britain2
- Missionaries--Correspondence2
- Mormons2
- Overland journeys to the Pacific--18522
- Precisionism--Pennsylvania--Lancaster2
- Publishers and publishing--United States2
- Slavery--United States--Extension to the territories2
Libraries & Collections
- Arts Library
- Bass Library
- Beinecke Library
- Classics Library
- Divinity Library
- Film Study Center
- Fortunoff Archive
- Humanities Collections
- International Collections
- Law Library
- Lewis Walpole Library
- Library Collection Services
- Manuscripts & Archives
- Map Collection
- Marx Science & Social Science Library
- Medical Library
- Music Library
- Sterling Library
- Yale Center for British Art
