Benjamin Stoddert Ewell was born in Georgetown, D. C., 10 June 1810, the son of Thomas Ewell and Elizabeth Stoddert. He graduated from United States Military Academy and taught there. He taught at Hampden- Sydney College and at Washington College (now Washington and Lee University). In 1848, he was elected professor of mathematics and acting president of College of William and Mary and in 1854, became president. He was colonel of 32nd Virginia Infantry Regiment and later assistant adjutant-general to Joseph E. Johnston. He was president of William and Mary 1854-1888 and died 1894. He was the brother of Richard Stoddert Ewell, had another brother, William Stoddert, a sister Elizabeth S. Ewell and a daughter Elizabeth S. Ewell Scott.
See the SCRC Wiki for more information about Ewell: http://scrc.swem.wm.edu/wiki/index.php/Benjamin_S._Ewell.