Complex sentence: Denny served as President of Alabama from 1912 through 1936 and again as interim President in 1941 and 1942 and oversaw a major expansion of both enrollment and the physical campus during his tenure.
Split into simpler sentences: Denny served as President of Alabama from 1912 through 1936 and again as Interim President in 1941 and 1942. Denny oversaw a major expansion of both enrollment and the physical campus during his tenure.