| Helena Knaap |
| Helena Knaap | |
| G: | 12 jan 1879 |
| Amsterdam | |
| O: | 17 dec 1949 |
| Amsterdam | |
| Hendrik Willem Lanfermeijer |
| Hendrik Willem Lanfermeijer | |
| G: | 8 nov 1874 |
| Amsterdam | |
| H: | 24 apr 1901 |
| Amsterdam | |
| O: | 27 mrt 1944 |
| Amsterdam | |
| Gerrit Knaap |
| Gerrit Knaap | |
| G: | 15 sep 1855 |
| Amsterdam | |
| O: | 1 mei 1948 |
| Amsterdam | |
| Maria Hendrika Kolder |
| Maria Hendrika Kolder | |
| G: | 27 mei 1858 |
| Amsterdam | |
| H: | 26 feb 1879 |
| Amsterdam | |