Complex sentence: Henry had but little education, but was Licensed to Preach in 1813 at the age of seventeen, admitted to the Itinerant Ministry of the Ohio Annual Conference of the Methodist Episcopal Church, doing hard work as a frontier Circuit Rider.
Split into simpler sentences: Henry had but little education, but was Licensed to Preach in 1813 at the age of seventeen. He was admitted to the Itinerant Ministry of the Ohio Annual Conference of the Methodist Episcopal Church, doing hard work as a frontier Circuit Rider.