Complex sentence: He studied theology at Union Theological Seminary, at the Yale Divinity School, and at Andover, and was licensed to preach ~ fl 1840 by the Third Presbytery of Philadelphia.
Split into simpler sentences: He studied theology at Union Theological Seminary, at the Yale Divinity School, and later at Andover. Circa 1840, he was licensed to preach by the Third Presbytery of Philadelphia.