Johannes Theodor Gerth - Pedigree | FamilyCentral
 10 Mar 1852 - 2 Jul 1934
 24 Aug 1809 - 2 Apr 1891
 26 Feb 1816 - 30 Aug 1898
 1 Dec 1772 - 11 Jul 1857
 23 Jul 1778 - 28 Jul 1856
 17 Dec 1795 - 6 May 1840
 18 Feb 1793 -