Past National Presidents:

Alpha (1925-1928)

Sigma (1928-1934)

President Emerita (1934-1949)

Pi (1949-1955)

Iota (1955-1964)

Pi (1964-1972)

Psi, President Emerita (1972-1984)

Alpha Lambda (1984-1986)

Phi (1986-1992)

Chi (1992-1996)

Alpha (1996-2002)

Delta (2002-2008)

Alpha Lambda (2008-2014)