Family: Martin J. Duppong / Helen Marquart (F68601)
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Mother | Female
Helen Marquart
Born 12 Apr 1930 North Dakota, USA 
Died 12 May 1998 Montana, USA 
Buried Father Peter P. Marquart | F68597 Group Sheet Mother Pauline Zentner | F68597 Group Sheet
| Mother | Female Helen Marquart |
| Born | 12 Apr 1930 | North Dakota, USA |
| Died | 12 May 1998 | Montana, USA |
| Buried | ||
| Father | Peter P. Marquart | F68597 Group Sheet | |
| Mother | Pauline Zentner | F68597 Group Sheet | |