Quote:
Originally Posted by exlurker
Acording to Baird's 20th ed., in 1991:
Alpha Delta Theta: 1919 - 1939 (entered NPC 1926)
Beta Phi Alpha: 1919 - 1941
Beta Sigma Omicron: 1888 - 1964
Delta Sigma Epsilon: 1914 - 1956
Phi Omega Pi: 1910 - 1946
Pi Kappa Sigma: 1894 - 1959
Theta Sigma Upsilon: 1921 - 1959
Theta Upsilon: 1914 - 1962
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Beat me to it.
ETA: I think the reason I have earlier dates is becuase both Beta Phi Alpha and Theta Upsilon had some incarnations as "clubs" prior to becoming a sorority and taking on letters.