Family: Constant Diels / Emma van Ravensteyn (F1711290026)
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 | Joanna Maria Timmermans (1859-1928) |
 | Henricus Diels (1884-1968) |
| Anna Maria Catharina Florentia Diels (1890-1969) |
| Constant Diels (1893-1985)
|
| Emma van Ravensteyn (1897-1970) |
