Complex sentence: He graduated from Havre de Grace High School in 1967, and went on to attend Towson University, where he graduated with a B.S. in History, and later a Masters Degree from Morgan State University.
Split into simpler sentences: He graduated from Havre de Grace High School in 1967. Craig went on to attend Towson University, and graduated with a B.S. in History, and later a Masters Degree from Morgan State University.