Complex sentence: In 1804, his owner, John Bowry, a Methodist minister, hired Cary out in the City of Richmond about 25 miles away from his home, where he joined the First Baptist Church of Richmond in 1807.
Split into simpler sentences: In 1804, his master John Bowry, a Methodist minister, hired Cary out in Richmond, about 25 miles away. There Cary joined the First Baptist Church of Richmond in 1807.