Table:
text: Southern Collegiate Athletic Conference
Former members
Former members
Institution Location_ Founded Type_ Enrollment Nickname Joined Left_ Current_Conference
Oglethorpe University Atlanta, Georgia 1835 Private 1000 Stormy Petrels 1991 2012 SAA
Principia College Elsah, Illinois 1910 Private 550 Panthers 1974 1984 SLIAC
Rhodes College Memphis, Tennessee 1848 Private/Presbyterian 1690 Lynx 1962 2012 SAA
Rose–Hulman Institute of Technology Terre Haute, Indiana 1874 Private 1970 Fightin` Engineers 1974, 1998 1989, 2006 HCAC
Sewanee: The University of the South Sewanee, Tennessee 1857 Private/Episcopal 1383 Tigers 1962 2012 SAA
Washington and Lee University Lexington, Virginia 1749 Private 2203 Generals 1962 1973 ODAC

Question: What is the nickname of the institution founded in 1857 under the Southern Collegiate Athletic Conference?