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Familie: Johan Henrik Halkjær Mammen / Oline Marie Rasmussen (F19021)
Carl Gotfred Mammen (1848-1900) 
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Thomasine Christine Helbek Halkjær (1852-1873) |
Hans Christoffer Mammen (1872- )  |
| Johan Henrik Halkjær Mammen (1872-1941)
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| Signe Helbæk Halkier Mammen (1907- ) |
| Karen Esther Halkier Mammen (1909- ) |
| Johanne Mammen (1911- ) |
| Hans Henrik Halkier Mammen (1915- ) |
| Grethe Mammen (1919- ) |