Robert Henry Irwin - Pedigree | FamilyCentral
 5 Aug 1892 - 26 Apr 1973
 10 Nov 1867 - 1 Apr 1951
 6 Mar 1872 - 4 Apr 1953
 4 Jan 1840 - 15 Jul 1922
 6 Dec 1839 - 31 Mar 1872
  - 17 Nov 1873
 30 Apr 1807 - May 1849
  - 31 Oct 1807
  - 4 Mar 1843
 Abt 1781 -
 Abt 1785 -