 MaleRalph Dewey Dederick |
| Birth | 1 Jul 1880 | Catskill, Greene, New York, United States  |
| Death | Yonkers, Westchester, New York, United States |
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 FemalePieternella Klazina Okkerse |
| Birth | 19 Mar 1882 | Bruinisse, Zeeland, Netherlands |
| Death | 7 Dec 1932 | Yonkers, Westchester, New York, United States |
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| Father | Johannis Marinus Okkerse | F16440 Group Sheet | |
| Mother | Johanna van Vessem | F16440 Group Sheet | |
