- Goldmining1
- Hangings (Executions)1
- Harbors1
- Health counselors1
- Homes and haunts1
- Hot springs1
- Hydraulic mining1
- Hydroelectric power plants1
- Identification photographs1
- Immigrant children1
- Immigrants1
- Industrial sites1
- Internal migrants1
- Japanese Americans1
- Labor1
- Labor policy1
- Labor unions1
- Landowners1
- Law firms1
- Letterheads1
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
