National History
On June 12, 1961 representatives from sororities at the University of Connecticut, Boston University, Hunter College, and the Universities of Massachusetts, Minnesota, and Rhode Island came together to adopt the idea of a national sorority with the common aim of nondiscrimination. A constitution was drawn up, officers were elected, and a national pin and crest was selected.

At this time, four of these groups chose to affiliate with Lambda Delta Phi. These sororities were from the the University of Massachusetts, the University of Rhode Island, the University of Minnesota, and Boston University. In joining together under the new national, these sororities dropped all previous local affiliations.

Lambda Delta Phi has remained vibrant and exciting and willing to change to meet the needs of the individuals who compromise it. It is still a true sisterhood. It is hoped that each woman who pledges Lambda Delta Phi will realize that much of its history is still to be made and is theirs for the making.

Founding Officers
President: Doris Knight, University of Massachusetts
Vice President: Laura Hagglund, University of Minnesota
Secretary: Anne Galloway, University of Rhode Island
Treasurer: Marilyn Bennett, University of Massachusetts

Local History
On January 12, 1959, Jean Baril, Carol Salemen, Maureen Quale, and Karen Johnson began plans for a third sorority on the St. Paul campus of the University of Minnesota. They chose the name Nu Sigma Pi and were officially recognized as a sorority in May 1959. They immediately began looking for a national sorority with which to affiliate. This process lasted for approximately two years until June 1961, when members attended a national conclave in Massachusetts. The ladies of Nu Sigma Pi chose to affiliate with Lambda Delta Phi, and on December 2nd, 1961 became the Gamma Chapter of the national organization.

The Gamma Chapter remains strong at the University of Minnesota and is located at 1381 North Cleveland Ave, in the heart of the St. Paul Campus.