George Samuel Pentecost (Penticost, Pentacost), one of Stephen F. Austin's Old Three Hundred colonists, was born in Alabama in 1791. In 1816 he married Martha Ellen Denley. He received title to a sitio of land in what is now Matagorda County on August 19, 1824, and in November 1825 was living on the San Bernard River. The census of 1826 classified him as a farmer and stock raiser, aged between twenty-five and forty. His household included his wife, four sons, a daughter, and one slave. In January 1827 he joined other settlers in declaring loyalty to the Mexican government and protesting against the Fredonian Rebellion. He died in Fort Bend County around August or November 1841, leaving at least five children living in that county. A son, George Washington Pentecost, fought in the battle of San Jacinto.