Alpha Sigma's history dates back to 1935 when Florence Peterson from Tacoma met Dr. Cora Martin, one of the national founders of Delta Kappa Gamma.

    Five years later, Ms Peterson and two other Washington State educators, Alberta McDonnell (Tacoma S.D.) and Dr. Eve Anderson (Wenatchee C.C.) were initiated as Delta Kappa Gamma members. Alpha Sigma State was established at the May 24, 1941 ceremony held at Seattle's Washington Hotel.

    Dr. Annie Webb Blanton installed Ms Peterson as Alpha Sigma's first president. Dr. Anderson, Ms McDonnell and ten other women also became state founders. They represented school districts from Bellingham, Ferndale, Seattle, Shelton, Yakima, and even Eastern Washington College.

    As the 42nd state to be organized, these thirteen women had the duty of sponsoring chapters throughout state. By the first state convention in May 1942, there were twelve chapters and a membership of 250 women.

    Today there are 47 chapters and over 1200 Active members in Washington.