Gerhardus Sytzes de Jong - Pedigree | FamilyCentral
 12 Aug 1898 -
 1 Jun 1867 - 13 Aug 1938
 13 May 1867 - 11 Sep 1942
 14 Feb 1840 - 1 Jul 1899
 14 Dec 1829 - 16 Jan 1915
 23 Dec 1810 - 29 May 1862
 5 May 1811 - 14 Jun 1844
 Abt 1802 -
 Abt 1805 -
 18 Feb 1784 - 2 May 1822
 25 Jan 1790 - 18 Mar 1867