Bertha Christina Petersen - Pedigree | FamilyCentral
 2 May 1854 - 11 Mar 1924
 Abt 1810 -
 15 Aug 1814 - 11 Aug 1870
 Abt 1788 -
  - 8 Dec 1853
  - 2 Oct 1828
 17 Sep 1723 -
  - 17 Apr 1802