Complex sentence: Born in Madison, Wisconsin in 1925, Hanson attended Harvard University in the early 1940s but his education at Harvard was interrupted in 1943 when he was drafted into service with the U.S. Army Air Forces.
Split into simpler sentences: Born in Madison, Wisconsin, Hanson attended Harvard University in the early 1940s. Hanson's education at Harvard was interrupted in 1943 when he was drafted into service with the U.S. Army Air Forces.