Background
Henagan was born in Marlboro District on June 7, 1798 to Darby and Drusilla Henegan.
governor lieutenant physician politician
Henagan was born in Marlboro District on June 7, 1798 to Darby and Drusilla Henegan.
He was educated at the academies in Marlboro County and he went on to study medicine at the University of Heidelberg in Germany.
Afterwards he returned to South Carolina to practice medicine as a physician and he also engaged in planting. In 1826, he became the president of the Brownsville Minerva Academy. In the final year of his term, Governor Patrick Noble died on April 7, 1840 and Henagan assumed the governorship.
His term as governor lasted less than a year, but Henagan deplored to the Legislature the poor condition of the public schools in the state and the corruption of the electoral process.
After leaving office in 1840, Henagan was reelected to the state Senate in 1844 and served as the Secretary of State from 1846 to 1850. Henagan died on January 10, 1855 in Charleston and was buried at Rogers Cemetery in Marlboro County.