William Tiefenback
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| Eric Jason Gruden 1973-1984 |
| Eric Jason Gruden | |
| B: | 8 Aug 1973 |
| D: | 3 Jun 1984 |
| Peter Frank Gruden 1941-2016 |
| Peter Frank Gruden | |
| B: | 23 Jul 1941 |
| D: | 18 Dec 2016 |
Helen Jeanette Tiefenback 1917-2005 |
| Helen Jeanette Tiefenback | |
| B: | 3 Dec 1917 |
| New York, USA | |
| D: | 6 Feb 2005 |
| Poughkeepsie, Dutchess County, New York, USA | |
| Helen Jeanette Zotz 1899- |
| Helen Jeanette Zotz | |
| B: | 24 Jul 1899 |
| New York, USA | |
| M: | 16 Nov 1917 |
| Brooklyn, Kings County, New York, USA | |
| D: | Miami, Dade County, Florida, USA |