Lamar University was founded in 1923 and became a four-year coeducational college in 1951. Alpha Delta Pi was the first Panhellenic sorority to express an interest in coming on campus and was chosen by the oldest social organization, the Revelers, also founded in 1923. Delta Beta was installed on November 23, 1956, with 20 collegiate members and 14 honorary alumnae. Three sororities now live in a dormitory, with meetings held in the Student Center. Alumnae who have served both as advisors and international officers include Eleanor Crockett Camp and Eleanor Stevens, both Delta - Texas and Charlotte Wilson Mann. Celia "Beth" Waters Black who helped colonize Epsilon Epsilon at Texas Tech and Lois Hencey Vance have served as international officers.