| Abbreviation | Definition |
|---|---|
| JGM | Jean Gabriel Mitterand |
| JGS | James G. Smirniotopoulos, MD |
| JGW | John Greenleaf Whittier (1807-1892) |
| JH | James Hayes |
| JH | Jeanne Howard |
| JH | John Hancock |
| JH | John Henry |
| JH | John Hunt |
| JH | Jonny Hart, Cartoonist |
| JH | Julia Helm |
| JHB | James H. Burghart |
| JHB | Johann Heinrich Bernhard |
| JHF | John Hope Franklin |
| JHJ | Jesse H. Jones |
| JHL | Jerome H. Levy, M. D. |
| JHM | J. Huston McCulloch |
| JHN | John Haymes Newton |
| JHO | Jeffrey H. Olson |
| JHP | John Henry Patterson (1844-1922) |
| JHT | John Henry Thompson |