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Johan Reinier Stevenhagen was born 22 November 1920 in Haarlem, North Holland, Netherlands and died 25 September 2011 Haarlem, North Holland, Netherlands of heart failure. He married Johanna Reintje Overmars (1923-2016) 4 August 1949 in Haarlem, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Johanna Stevenhagen (1952) | |||
| Marijke Stevenhagen (1959) | |||
| Carla Stevenhagen (1964) | |||
Residences