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Jopie Overmars was born 16 October 1923 in Haarlem, North Holland, Netherlands to Johan Overmars (1891-1946) and Marchien Hogendoorn (1893-1964) and died 1 January 2016 Haarlem, North Holland, Netherlands of unspecified causes. She married Johan Reinier Stevenhagen (1920-2011) 4 August 1949 in Haarlem, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Johanna Stevenhagen (1952) | |||
| Marijke Stevenhagen (1959) | |||
| Carla Stevenhagen (1964) | |||
Residences
