Helen Cooper
1902 - 1979 (76 years)(
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- 1 Helen Cooper [1] b. 22 Dec 1902 d. 11 Mar 1979
- + Paul Gerald Schweickart b. 7 Aug 1901 d. 16 Dec 1977
- + Paul Gerald Schweickart b. 7 Aug 1901 d. 16 Dec 1977