Complex sentence: She went to high school in Coshocton, Ohio, before attending Ohio State University from 1898 until 1899, and then Mount Holyoke College from 1900 until 1902.
Split into simpler sentences: She went to high school in Coshocton, Ohio. Carr attended Ohio State University from 1898 until 1899 and Mount Holyoke College from 1900 until 1902.