Johann August Heinrich Demke - Pedigree | FamilyCentral
 28 Aug 1856 - 28 Jul 1904
 7 May 1821 - 20 Oct 1870
 22 Oct 1828 - 14 Feb 1904
 1785 - 26 Nov 1855
 Abt 1789 -
 Abt 1800 - 26 Sep 1855
 4 Aug 1800 - Jul 1889
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