1. Clifton, Florence G. "Susie", January 6, 1975 Arthur, Thomas H. Indiana University » Center for Documentary Research and Practice » Collection: ohrc021: Biography: Melvyn Douglas, 1972-1980
2. Cohen, Myer, March 12, 1975 Arthur, Thomas H. Indiana University » Center for Documentary Research and Practice » Collection: ohrc021: Biography: Melvyn Douglas, 1972-1980
3. Douglas, Helen Gahagan, December, 1973 Scobie, Ingrid W. Indiana University » Center for Documentary Research and Practice » Collection: ohrc014: Biography: Helen Gahagan Douglas, 1973-1983
