1. De Sola, Alis, March 26, 1980 Scobie, Ingrid W. Indiana University » Center for Documentary Research and Practice » Collection: ohrc014: Biography: Helen Gahagan Douglas, 1973-1983
2. Williams, Hosea, June 14, 1974 Arthur, Thomas H. Indiana University » Center for Documentary Research and Practice » Collection: ohrc021: Biography: Melvyn Douglas, 1972-1980
