Gezin: Carl Clemens Koch / Léontine Octavie Henriette Janssen (F1346)
getr. 26 jan 1893 | Leonardus Janssen (1832- ) |
 | Wilhelmina Maria Hubertina Pangels (1835-1924) 
|
| Maria Catharina Wilhelmina Hubertina Janssen (1862-1892)  |
| Emile Carel Janssen (1870-1871) |
| Theophile Jaques Janssen (1872-1885) |
| Bertha Sophia Hubertina Janssen (1874- ) |
| Anna Carolina Hubertina Janssen (1877-1971) |
| Joseph Theodore Janssen (1880-1965) |
| Léontine Octavie Henriette Janssen (1868- )
|
| Carl Florenz Koch (1893- ) |
| Maria Hubertina Koch (1895- ) |
| Bernhard Theodor Koch (1896-1896) |
| Bertha Maria Koch (1898-1972) |
| Bernardina Maria Koch (1904- ) |
| Bernard Heinrich Koch (1903-1980) |