| Male Roggenkamp Jan Cornelius |
| Birth | 6 Feb 1877 | Appingedam, Groningen, The Netherlands |
| Death | 2 Apr 1946 | Groningen, Groningen, The Netherlands |
| Burial | ||
| Marriage | 14 Feb 1900 | Droyladen, England |
| Father | Cornelius Roggenkamp | F6286 Group Sheet | |
| Mother | Jantina Catharina Wichendina Hefting | F6286 Group Sheet | |
| Female Mary Millicent Chorlton |
| Birth | 20 May 1876 | Fairfield, England |
| Death | 23 Aug 1946 | Groningen, Groningen, The Netherlands |
| Burial | ||
| Father | William Chorlton | F6285 Group Sheet | |
| Mother | Margaret Pimlott | F6285 Group Sheet | |
| Female Elisabeth Mary Roggenkamp |
| Birth | 28 Aug 1904 | Appingedam, Groningen, The Netherlands |
| Death | 7 Jan 1987 | Rotterdam, Zuid-Holland, The Netherlands |
| Burial | ||
| Spouse | Henri Louis Benjamins | F6244 | |
| Marriage | 23 Jun 1930 | Appingedam, Groningen, The Netherlands |