- Major General James E. Livingston (Alpha Delta Chapter, Auburn University 1962): Major General in the US Marine Corps, served in the Vietnam War, Recipient of the Medal of Honor, Navy Distinguished Service Medal, Silver Star, and many other medals/awards.
- Walter Marty Schirra, Jr. (Alpha Mu Chapter, NJIT 1944): Astronaut: Project Mercury, Project Gemini, and Project Apollo.
- Tracy Lawrence (Epsilon Kappa Chapter, Southern Arkansas University 1989): Country music star.
- Herman Fisher (Theta Chapter, Penn State 1921): Co-founder of Fisher-Price toys.
- Curtis Shake (Alpha Chapter, Vincennes University 1906): Chief Justice of the Indiana Supreme Court and Presiding Judge at the Nuremberg Trials.
- Tony Romo (Beta Gamma Chapter, Eastern Illinois University 2001): NFL quarterback and winner of the Walter Payton Award.
- Rudy Feldman (Upsilon Chapter, UCLA 1953): AFL and Superbowl Champion (1969) with the New York Jets.
- H. Lawrence Fuller (Eta Chi Chapter, DePaul University): CEO of Amoco Oil Company.
Alpha Delta Alumni now have their own website that contains Alumni News, Game Day Tailgating Information, and also an Online Alumni Directory. The Alumni Website is password protected so that alumni information is protected. If you are an alumnus that would like to access the directory please email your full name and graduation year to John Perko at firstname.lastname@example.org.
If you already have a user name and password, access the alumni website below.