John Michael Gress - Pedigree | FamilyCentral
 15 Aug 1788 - 3 May 1870
 13 Nov 1755 - 3 Nov 1815
 25 Mar 1754 - 27 Nov 1829
 28 Jan 1725 - 10 Apr 1808
 Abt 1720 -
 1 Jan 1721 - May 1795
 25 Dec 1719 - 1779
 Abt 1690 - Abt 1760