Familie: Philip Mac Siple / Magrit Gerdes (F156)
Lyle Lee Siple (1922-2008) 
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| Stephen L. Siple (1944-1997) |
 | Heinrich Diedrich Gerdes (1926-2020)
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Louise Mariechen Bernhardine Niemann (1927-2005)
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Gary Louis Gerdes (1959-2014)  |
| Mark Robert Gerdes (1967-1983) |