Hendricus Jacobus Riko (1859-1920) 
|
Gerardus Hendrik Riko (1884-1949)  |
Jacoba Antonia Riko (1887-1949) |
| Hendrik Gerardus Riko (1889- ) |
| Maria Wilhelmina Riko (1890- ) |
| Cornelis Lodewijk Riko (1893-1942) |
| Hendrika Johanna Riko (1897- ) |
| Helena Maria Riko (1899- ) |
| Petrus Hendricus Riko (1901- ) |
| Magdalena Josephina Riko (1904- ) |
| Jacob Antonius Riko (1906- ) |
| Johanna Hendrika Riko (1886-1966)
|
| Wilhelmus Antonius Kettmann (1913-1917) |
| Pieter Kettmann (1915- ) |
| Hendricus Kettmann (1916- ) |
| Wilhelmus Johannes Kettmann (1919- ) |
| Paula Hendrika Kettmann (1920- ) |
| Leo Kettmann (1921- ) |
| Johanna Kettmann (1921- ) |
| Antoni Marinus Kettmann (1923- ) |
| Herman Kettmann (1925- ) |
| Bastiaan Kettmann (1928- ) |
