Who is Rachel Plummer from Ride the Wind: The Story of Cynthia Ann Parker and the Last Days of the Comanche and what is their importance?

Rachel Plummer was taken captive at the age of 15, with her young son Jamie. She was pregnant at the time of her capture, was used as a slave, and she was repeatedly raped during her time of captivity. Rachel was ransomed by Jose Tafoya, and she was then taken to safety through Santa Fe, New Mexico. When she finally got home, she learned that her husband had married another woman. Rachel died one year after her rescue.