William Fretz - Pedigree | FamilyCentral
 Abt 1898 -
 7 Mar 1870 - 18 Jun 1960
 3 Feb 1869 - 13 Jan 1945
 6 Jul 1834 -
 25 Dec 1844 - 28 Mar 1908
 Abt 1805 -
 14 Feb 1809 - 14 Oct 1889
 24 Jan 1768 - 23 Mar 1854
 18 May 1782 - 17 Apr 1855