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Fraternity Directory, February 1918

Collection: Tri Delta Publications

Fraternity Directory, February 1920

Collection: Tri Delta Publications

Fraternity Directory, February 1922, Continued

Collection: Tri Delta Publications

Fraternity Directory, February 1923, Continued

Collection: Tri Delta Publications

Fraternity Directory, February 1924

Collection: Tri Delta Publications

Fraternity Directory, January 1935

Collection: Tri Delta Publications

Fraternity Directory, January 1937

Collection: Tri Delta Publications

Fraternity Directory, January 1938

Collection: Tri Delta Publications

Fraternity Directory, January 1940

Collection: Tri Delta Publications

Fraternity Directory, January 1941

Collection: Tri Delta Publications

Fraternity Directory, January 1942

Collection: Tri Delta Publications

Fraternity Directory, January 1943

Collection: Tri Delta Publications

Fraternity Directory, January 1944

Collection: Tri Delta Publications

Fraternity Directory, January 1945

Collection: Tri Delta Publications

Fraternity Directory, January 1946

Collection: Tri Delta Publications

Fraternity Directory, January 1947

Collection: Tri Delta Publications

Fraternity Directory, January 1948

Collection: Tri Delta Publications

Fraternity Directory, January 1949

Collection: Tri Delta Publications

Fraternity Directory, January 1950

Collection: Tri Delta Publications

Fraternity Directory, January 1951

Collection: Tri Delta Publications