Gemma was a starved traveler from West Texas, along with Jerry Park, they were headed to visit a cousin in Agua Verde. They met the companions in Opium Wells, and received food, and water. Later during the night they tried unsuccessfully to rob and kill the companions, both of them dying in the process. (Rider, Reaper)
Gemma was painfully thin. She wore torn cotton pants and a hand-dyed woolen shirt. Her bleached blonde hair was tied back in a raggedy ponytail.