Complex sentence: He was educated at Princeton Prep School, Princeton, New Jersey until 1923, and graduated from Union College, Schenectady, New York, with a Bachelor of Science in Civil Engineering in 1928.
Split into simpler sentences: He was educated at Princeton Prep School in Princeton, New Jersey until 1923. He attended Union College in Schenectady, New York, and graduated with a Bachelor of Science in Civil Engineering in 1928.