Frederick William Barkhausen - Pedigree | FamilyCentral
 24 Oct 1874 - 31 Mar 1881
 Abt 1837 - 4 May 1874
 Abt 1841 -
 1810 - 1865
 1815 - 5 May 1894
 Abt 1790 - Bef 1860