1912 - 1993 (80 years)
| Arden Duke Cromwell | |
| B: | 11 Jul 1940 |
| Honolulu, Oahu, Honolulu, Hawaii, United States | |
| D: | 12 Jul 1940 |
| Honolulu, Oahu, Honolulu, Hawaii, United States | |
|
| Doris Duke | |
| B: | 22 Nov 1912 |
| New York City, New York County, New York, United States | |
| D: | 28 Oct 1993 |
| Beverly Hills, Los Angeles, California, United States | |
| James Henry Roberts Cromwell | |
| B: | 4 Jun 1896 |
| New York City, New York County, New York, United States | |
| M: | 13 Feb 1935 |
| Manhattan, New York City, New York, United States | |
| D: | 19 Mar 1990 |
| Mill Valley, Marin, California, United States | |
| Porfirio Enrique Rubirosa Ariza | |
| B: | 22 Jan 1909 |
| El Seibo, Dominican Republic | |
| M: | 1 Sep 1947 |
| Paris, Île-de-France, France | |
| D: | 5 Jul 1965 |
| Paris, Île-de-France, France | |
