 He was succeeded by his son and namesake, Col. C.R.Endsley Jr. Endsley Jr. was one of the school's longest-serving administrators, serving as commandant from 1934 to 1956, as president from 1956 to 1971, and as head of the chemistry and physics department from 1971 to 1981.Thomas C. Dula succeeded Endsley Jr. as president, serving until the school went coed in 1973, when Sanford Gray became president, a role he filled until the school's closing.