East Coast RootsGenealogy and History on the East Coast
 MaleHenry Harper Silliman |
| Birth | 12 Sep 1907 | |
| Death | 2 Dec 1994 | |
| Burial | Du Pont de Nemours Cemetery, Wilmington, New Castle Co., DE  |
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| Marriage | 10 Jun 1933 | |
| Father | ||
| Mother | ||
 FemaleMariana Du Pont |
| Birth | 18 Jun 1911 | |
| Death | 17 Apr 1992 | |
| Burial | Du Pont de Nemours Cemetery, Wilmington, New Castle Co., DE |
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| Father | Eleuthere Irenee Du Pont | F2656 Group Sheet | |
| Mother | Sophie Irene Du Pont | F2656 Group Sheet | |
| Female + Mariana du Pont Silliman |
| Birth | 1941 | |
| Death | ||
| Burial | ||
| Spouse | Robert Henry Richards, III | F2658 | |
| Marriage | 14 Mar 1964 | |
| Unknown Robert Morris Silliman |
| Birth | 21 Mar 1947 | |
| Death | 4 Feb 2019 | |
| Burial | Du Pont de Nemours Cemetery, Wilmington, New Castle Co., DE |
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