| Jonkheer Eric Otto Holmberg de Beckfelt |
| Jonkheer Eric Otto Holmberg de Beckfelt | |
| B: | 24 Jun 1903 |
| Amsterdam | |
| D: | 9 Aug 1969 |
| Leiden | |
| Bertha Geertruida Roetman |
| Bertha Geertruida Roetman | |
| B: | 28 Jan 1897 |
| Amsterdam | |
| M: | 8 Oct 1925 |
| Calcutta, West-Bengalen, India | |
| D: | 31 May 1980 |
| Amsterdam | |
| Mae Ailshare Ebby |
| Mae Ailshare Ebby | |
| B: | Abt 1901 |
| Buckeye Lake, Ohio, United States of America | |
| M: | 23 Jan 1932 |
| Nuevo Laredo, Tamaulipas, Mexico | |
|
| Jonkheer Otto Theodoor Ludolph Holmberg de Beckfelt | |
| B: | 21 Oct 1869 |
| Den Haag | |
| D: | 30 Apr 1919 |
| Amsterdam | |
| Abramine Julienne van Oosterzee |
| Abramine Julienne van Oosterzee | |
| B: | 30 Nov 1878 |
| Jakarta, West-Java, Indonesië | |
| M: | 18 Jun 1902 |
| Jakarta, West-Java, Indonesië | |
| D: | 21 Aug 1949 |
| Den Haag | |