John Parker was born in 1830 in
Crawford County, Illinois, the second oldest child of Silas Mercer Parker (1804–1836) and Lucinda Duty. His younger siblings were Silas Mercer Jr., and Orlena. His older sister was
Cynthia Ann Parker. This family and allied families, led by Silas's father
John and brother
Daniel, moved from
Illinois to
Texas in 1833. A large group under the family patriarch, Elder John Parker, settled near the headwaters of the Navasota River in present-day
Limestone County. In 1834 they completed Fort Parker for their protection on the frontier. On May 19, 1836, a large force of
Comanche and allied warriors attacked the fort, and in what became known as the
Fort Parker Massacre killed five men and captured two women and three children: Parker, his elder sister Cynthia Ann,
Rachel Plummer and her son James Pratt Plummer as well as Elizabeth Duty Kellogg.
Captivity The Comanche's population had increased in large part by adopting captured women and children into the tribe, the former as child-bearing slaves and the latter as tribal members. Grown men captured alive were generally killed. but Parker was unable to readapt and ran away from his family to return to the Comanches. ==In Mexico==