1898 - 1972 (74 years)
| Helen Ward Sperry | |
| B: | 1932 |
| New York, United States | |
| D: | 9 Nov 2019 |
| Wilton, Fairfield, Connecticut, United States | |
| Helen E Duffy | |
| B: | 1898 |
| New York City, New York, United States | |
| D: | 1972 |
| Trenton, Mercer, New Jersey, United States | |
| Elmer Ambrose Sperry, Jr. | |
| B: | 9 May 1894 |
| Cleveland, Cuyahoga, Ohio, United States | |
| M: | 5 Jun 1924 |
| Manhattan, New York, New York, United States | |
| D: | 21 Dec 1968 |
| Connecticut, United States | |
