| 1. | Derk Hendrik Jan Kollen was born on 10 Aug 1902 in Arnhem, Gelderland, The Netherlands; died on 7 Jan 1981 in Renkum, Gelderland, The Netherlands. Derk married Marie Julie Christine Benjamins on 14 Sep 1927 in Arnhem, Gelderland, The Netherlands. Marie (daughter of Henri Alfred Benjamins and Julie Henriette Martherus) was born on 15 Aug 1903 in Semarang, Java, DEI; died on 4 Dec 1971 in Renkum, Gelderland, The Netherlands. [Group Sheet] [Family Chart]
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| 2. | Charles Jean Henri Kollen Family/Spouse: J. te Winkel. [Group Sheet] [Family Chart] |
| 3. | J.D. Kollen Family/Spouse: E.R.A. de Graaf. [Group Sheet] [Family Chart] |
| 4. | H.A. Kollen Family/Spouse: I. van Wijk. [Group Sheet] [Family Chart] |
| 5. | Anton Hendrik Kollen Family/Spouse: J.G.G. Vonk. [Group Sheet] [Family Chart] |