Originally organized as the local Omega Delta Sigma sorority, Gamma Omicron was chartered at Susquehanna University on April 29, 1950, becoming the first national sorority on campus. In 1983, university officials allowed the sororities to relocate from chapter rooms to small houses along University Avenue. Gamma Omicron has furnished a room at the Ronald McDonald House in Danville and holds an annual Easter party for underprivileged children. The chapter received the Golden Lion Award in 1987, 1989 and 1991. Former Grand President and Foundation President Jane Fielder Madio is a Gamma Omicron alumna. She also served on the 150th Anniversary Committee.