Written by Dr. William E. Parish, Tomas Gamma is the third book written on the history of Phi Gamma Delta.
The History of Phi Gamma Delta (1848-1923) serves as a companion volume to Tomas Alpha (Out of Print) and Tomas Beta, which earlier told that story in much greater detail, and to Tomos Gamma, which relates the growth and development of the Fraternity from the mid-1920s to the end of the 20th century.