| J.C. Penney House | |
| J.C. Penney Mother Store | |
| Jackson Hole Guide | Kerry Drake |
| Jackson Hole Historical Society and Museum | |
| Jackson Hole News | Kerry Drake |
| Jackson Hole News & Guide | Kerry Drake |
| Jackson Hole ski resort | |
| Jackson, William Henry: Foremost Photographer of the American West | Rebecca Hein |
| James Reeb Memorial Park | |
| James Reeb mural | |
| James, Verda | Wyoming Legislative Service Office |
| Jane, Calamity | Rebecca Hein |
| Jenkins, Edna Richards and Thomas, murder of, 1911 | Rebecca Hein |
| Jenkins, Theresa, Women’s Suffrage orator and activist | MaryJo Birt |
| Jensen, Henry, oral history | Dana Van Burgh |
| Jewish Farm Families of Huntley, Wyoming | Carl V. Hallberg |
| Jim Gatchell Memorial Museum | |
| John Taggart Hinckley Library at Northwest College | |
| Johnson County Library | |
| Johnson County War | John W. Davis |
| Johnson County War route | |
| Johnson County, Wyoming | Brodie Farquhar |
| Jurors, female, in territorial Wyoming | Kim Viner |
