| Title | Author |
|---|---|
| Permanent Wyoming Mineral Trust Fund | Sarah Gorin |
| Petersen, Carol, Cokeville bombing oral history | Wyoming State Archives |
| Philharmonic Orchestra of Casper | Rebecca Hein |
| Philippines, Wyoming Troops in 1898 | Douglas R. Cubbison |
| Pictographs and Petroglyphs | Tom Rea |
| Pictographs near Outlaw Canyon | |
| Piedmont Charcoal Kilns | |
| Piedmont Charcoal Kilns | WyomingHeritage.org, Wyoming State Historic Preservation Office |
| Pinedale Anticline and Jonah Field | |
| Pinedale Anticline development | Ann Chambers Noble |