Johannes William Fredrich Volkert - Pedigree | FamilyCentral
 15 Dec 1855 - 8 Jul 1953
 18 Feb 1822 - 25 Nov 1898
 14 Sep 1833 - 25 Nov 1900
 30 May 1772 - 6 May 1837
 9 Jun 1775 - 27 Mar 1851
 1 Sep 1793 -
Family Group
  - 7 Jul 1805
Family Group
  - 28 Jun 1784
Family Group
 13 Oct 1776 - 15 Oct 1851
 26 Apr 1772 - 11 Jan 1819
  - 30 Aug 1797
 23 Sep 1731 - 31 Dec 1800
 15 Feb 1738 - 17 Apr 1820
 26 Jul 1747 - 20 Sep 1808