I thought I would add one other NIC fraternity,
sans Greek letters, Triangle Fraternity.
http://www.triangle.org/
All three NIC fraternities were founded around a hundred years ago at mid-western universities. Acacia Fraternity founded in 1904 at the University of Michigan; FarmHouse International Fraternity founded in 1905 at the University of Missouri; and Triangle Fraternity founded in 1907 at the University of Illinois.