| Name | Derk Johannes GRUL |
| Birth | 16 Jul 1903, Nijmegen(Hees), Gelderland, Nederland |
| Death | 6 May 1969, Amsterdam, Noord-Holland, Nederland |
| Burial | 9 May 1969, Amsterdam, Noord-Holland, Nederland |
| Occupation | Drogist |
| Father | Andries Theodorus GRUL (1866-1929) |
| Mother | Aleida EVERTS (1867-1937) |
Huwelijk: Acte reg.5A;fol.31, Noord-Holl.Arch.
Overlijden: grafnummer:2-65-H-77
Begraafregister De Nieuwe Ooster; NL-SAA-791372
Persoons Kaart.
| 1 | Cornelia AKKERMAN |
| Birth | 13 May 1905, Sloten, Noord-Holland, Nederland |
| Death | 19 Sep 1991, Amsterdam, Noord-Holland, Nederland |
| Occupation | Verkoopster |
| Father | Cornelis AKKERMAN (1874-1944) |
| Mother | Bergedina Johanna DUIJKER (1876-1952) |
| Marriage | 4 Apr 1929, Amsterdam, Noord-Holland, Nederland |
| Children | Aleida Berendina (1932-2009) |
| Theodorus Cornelis (1935-) | |
| Rudolf Johan (1937-1994) |