C. O. Langen, Chronik der Familie Johann Jakob Langen in Köln, Mönchengladbach 1899, S. 114
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Karl MENNIER | ___________________________________
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|--Anna MENNIER
| (1863-....)x1889 Heinrich Georg RUHFUS
| | (1721-1805)x1756
| Heinrich Arnold RUHFUS | Anna Katharina REES >
| | (1774-1833)x1796 (1735-1805)
| Johann Wilhelm Arnold RUHFUS |
| | (1798-....)x1823 | Gisbert Wilhelm Ludwig SCHMEMANN >
| | | | (1730-1807)x1756
| | | Magdalena Katharina SCHMEMANN | Katharina Elisabeth BALTHASAR
| | (1765-1828)x1796 (1730-1784)
| Luisa Helena Henriette RUHFUS | ___________________________________
(1823-1865) | |
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| Anna Dorothea ANDRES | ___________________________________
(1803-....)x1823 | |
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