Complex sentence: During his time as president, Lewis oversaw an expansion of the Brent scholars program for first generation college students, he also oversaw a more than doubling of the school's African-American student population from 6% in 1982, to 14% in 1992.
Split into simpler sentences: During his time as president, Lewis oversaw an expansion of the Brent scholars program for first generation college students. He also oversaw a more than doubling of the school's African-American student population from 6% in 1982, to 14% in 1992.