Encyclopedias, Almanacs, Transcripts, and Maps
- Hart, Basil Henry Liddell
- Hart, Doris
- Hartford Foundation
- Harthacanute
- Hartington, Spencer Compton Cavendish, marquess of
- Hartline, Haldan Keffer
- Hartman, David
- hartshorn, spirits of
- Hartwell, Leland Harrison
- Harumaph
- Haruz
- harvest customs
- harvest fly
- harvestfish
- Harvey Mudd College
- Harvey, Fred
- Hasa, Al
- Hasadiah
- Hasbeya
- Hasbrouck Heights