Complex sentence: After being expelled from Groton because the dean didn't care for him, Archie continued his education at Phillips Academy, Andover, Mass., the Evans School for Boys, Theodore Roosevelt (1916) A Book-Lover's Holidays in the Open.
Split into simpler sentences: After being expelled from Groton because the dean didn't care for Archie. Archie was then educated at Phillips Academy, Andover, the Evans School for Boys, Theodore Roosevelt (1916) A Book-Lover's Holidays in the Open.