1. Engel, Lehman, March 12, 1975 Arthur, Thomas H. Indiana University » Center for Documentary Research and Practice » Collection: ohrc021: Biography: Melvyn Douglas, 1972-1980
2. Leighter, Jackson, January 8, 1975 Arthur, Thomas H. Indiana University » Center for Documentary Research and Practice » Collection: ohrc021: Biography: Melvyn Douglas, 1972-1980