Complex sentence: Hauge earned a B.A. from Concordia College (Minnesota) in 1935, an M.A. from Harvard University in 1938, and his Ph.D. from Harvard University in 1947.
Split into simpler sentences: Hauge earned a B.A. from Concordia College (Minnesota) in 1935 and an M.A. from Harvard University in 1938. He earned his Ph.D. from Harvard University in 1947.