1. Donaldson, Ray S., November 13, 1969, November 5, 1971 Pickett, William B. Indiana University » Center for Documentary Research and Practice » Collection: ohrc015: Biography: Homer E. Capehart, 1969-1973
2. Halleck, Charles A., December 15, 1969 Patterson, James T. Indiana University » Center for Documentary Research and Practice » Collection: ohrc064: Indiana Politics, 1969, 1976, 1978
