A. Blömer, Ahnenliste der Johanna Margarethe Kottmann aus Wevelinghoven, Mönchengladbach 1986, S. 11
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Nikolaus ESSER | __
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Johannes ESSER | __
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| | Katharina SCHOMECHER | __
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|--Gerhard GÖRDTS
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| Gerhard HEYMANNS | __
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| Cäcilia HEYMANNS | __
(1652-1703)x1676 | |
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| Anna LÖHR | __
x1650 | |
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