Nu Pi Graduate Chapter was chartered on March 9, 1974 in Joliet, Illinois. Numerous brothers were influential during the formation of this chapter and were active in numerous civic activities within the Joliet community. They included: Sam Epps, Leroy Adams, John Bell, Julian Browne, Floyd Eskridge, Johnnie Greenwood, Cleo Knight, Willie L. Lewis, Arnold Mitchell, Harold Reeder, Roseman Tillman, James Robertson, Mel Walker, Cornell Williams and Bill Lucky.
In 1975, these brothers determined that they would reach out to undergraduate men at Lewis University to bring the legacy of Omega Psi Phi to this campus as well. At that time, there was only one undergraduate member of Omega Psi Phi on the campus who had recently transferred from Bishop College in Dallas, Texas, Carlton L. Russell. Soon thereafter, an orientation meeting was held and these Omega men each shared with the students assembled why they aspired to be Omega men. In October that same year, seven young men became the charter members of Pi Eta Chapter and Omega Psi Phi became the first Black Greek letter organization on campus. At this time in history, every major civil rights organization was headed by a member of Omega Psi Phi Fraternity. NAACP-Benjamin Hooks, National Urban League-Vernon Jordan and
PUSH-Rev. Jesse Jackson.
Over 60 brothers have joined Nu Pi Chapter over the years and in 2005 these brothers have rededicated themselves to service in the Joliet Community. From blood drives at Lewis University to Turkey and Ham giveaways and coat drives held at Forest Park Community Center, Omega is alive and well in Joliet.