Description: Records of the Delta Tau Delta UI Chapter Fraternity (1911, 1923-39, 1947, 1951-54, 1967, 1980-2003, 2007) include alumni correspondence and rosters, histories, historical documents, newspaper clippings, officer lists and photographs pertaining to the 1980 Alpha Phi Exchange, 125th anniversary, SPGH History by Jon Coit (2001) and the John Street campaign (1999-2000).