The Clionian Sorority was formed from the merging of the Clionian Society, formally Pi Delta Sigma, and the Sigma Beta Epsilon, formally Sigma Beta Sigma, in 1934. The Clionian Sorority ran until 1953
The Lambda Chapter of Arethusa came to Potsdam on March 8th, 1930, it developed out of the Lambda Society, Lambda Delta Chi, which formed in 1926 under the name Leu De Cra