| | Karl Bernhard Monheim 1908–1941 Gertrud Niessen 1909–1978 | | | | Matthias Ignatius Maria Monheim 1878–1940 Josephine Franziska van Erckelens 1882–1961 | | | | Leonard Maria Johannes Peter Monheim 1830–1913 Antoinette Anna Josephine Hubertine Godefrida Merckelbach 1835–1913 | | |
| | | Leonard Franz Hubert van Erckelens 1850–1917 Maria Christina Elisabeth van Baerle 1861–1936 | | |
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