| Title | Author |
|---|---|
| Ross, Nellie Tayloe and 1928 presidential campaign | Rebecca Hein |
| Ross, Nellie Tayloe, biographical essay | Tom Rea |
| Ross, William | Wyoming State Archives |
| Rural electrification, Wyoming history of | Kerry Drake |
| Russin, Robert, sculptor | Maria Wimmer |
| Ryan Hill, Oregon Trail site of | WyoHistory.org |
| Ryan Park Campground | |
| Ryan, John “Posey,” early soldier, settler, murderer and hotelkeeper | Douglas R. Cubbison |