Career
He was the brother of John Hiester and Daniel Hiester. Hiester was born in Montgomery County, Pennsylvania on July 17, 1749, the son of German immigrants Daniel and Catherine Shuller Hiester. As an adult, Gabriel moved to Bern Township, Berkshire County, Pennsylvania where he purchased a farm.
He served as a colonel in the Pennsylvania militia during the American Revolution.
He served in the Pennsylvania state legislature for nearly 30 years and served as state senator for Berkshire and Dauphin counties from 1795 to 1796 and again from 1805 to 1812. Hiester died on September 1, 1824.
