"Henry Sycks ... was a native of Virginia, but while quite young removed with his father to Greene County, Pa., and settled on the waters of Dunkard Creek, in Monongahela township. They were among the pioneers that first permanently located west of the Monongahela River. Young Henry participated in the Indian wars of the period, and endured the privations and hardships incident to border life. He was united in matrimony with Barbary Selser, a daughter of a contemporary settler, and ten children were the fruits of their marriage.. "

From the biography of Dr. Wilson Greene
http://www.historicpa.net/bios/2w/wilson-greene.html