Johann was born on 16 AUG 1823 in Wemmetsweiler, Saarland, Germany, the son of Johann Lorenz Dumont and Anna Thinnes.
He died on 1 MAR 1855 in Wemmetsweiler, Saarland, Germany.
His wife was Maria Klein, who he married on 20 JAN 1845 in Illingen, Germany. Their six known children were Paul (1845-?), Peter (1847-1847), Johann Peter (1848-?), Catharina (1849-1915), Jakob (1851-?) and Johann (1853-?).
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | 16 AUG 1823 |
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| Death | 1 MAR 1855 |
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