![Dupken [NL-], Johan Fredrik](img/male.jpg)
? - ?
| Name | Dupken [NL-], Johan Fredrik | |
| Born | ? | |
| Gender | Male | |
| Died | ? | |
| Person ID | I46026 | GIN |
| Last Modified | 10 Feb 2018 | |
| Family | van der Duijn [NL-], Maria, b. c1763, Rotterdam ZH  , d. 11-04-1833, Rotterdam ZH (Age ~ 69 years) | |
| Married | ? | ? |
| Last Modified | 19 Apr 2016 | |
| Family ID | F19384 | Group Sheet | Family Chart |
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