1  Mary PRITCHARD (1808 Currin Par, County Monaghan, Ireland – 28 Mar 1885 Irwin Settlement, Masham, Quebec, Canada)
   +  Joseph IRWIN (abt 1805 Briscarnagh, Currin Par, County Monaghan, Ireland – 28 Sep 1876 Danford, Quebec, Canada)
      2  James IRWIN (1825/6 Currin Par, County Monaghan, Ireland – 1902 Kazabazua, Quebec, Canada)
         +  Elizabeth “Lisa” GRAHAM (1826 Ireland – 14 Apr 1896 Kazabazua, Quebec, Canada)
      2  Anne IRWIN (1829 Wakefield, Quebec, Canada – 1886 Macham, Quebec, Canada)
         +  James SHOULDICE (7 Apr 1822 Bells Corners, Ontario, Canada – 6 Apr 1895 Wakefield, Quebec, Canada)
            3  James SHOULDICE (16 Mar 1848 Masham, Quebec, Canada – 6 Mar 1921 Wakefield, Quebec, Canada)
               +  Mary Ann STEVENSON (26 Mar 1851 Wakefield, Quebec, Canada – 1951 Ottawa, Ontario, Canada)
                  4  Annie May Stevenson “Alice” SHOULDICE (abt 1874 Wakefield, Quebec, Canada – )
                     +  Preston Arthur AYLSWORTH 
                  4  Thomas Howard SHOULDICE (25 May 1875 Wakefield, Quebec, Canada – 1942)
                     +  Bessie HOLLINGTON (1878 – 1959)
                        5  Bessie Norma SHOULDICE (5 Apr 1904 – )
                        5  William Thomas Hans “Hap” SHOULDICE (12 Mar 1907 – 20 May 1981 Ottawa, Ontario, Canada)
                           +  Lois Isobel MCCULLOCH (1910 – 1984)
                        5  Norma SHOULDICE (1904 – 1985)
                           +  SNIDER 
                  4  Jennie Chamberlin SHOULDICE (29 Mar 1877 Wakefield, Quebec, Canada – )
                     +  Robert STEWART (abt 1873 – )
                        5  William Arthur STEWART (11 Apr 1899 Fort William, Thunder Bay, Ontario, Canada – 13 Jul 1902)
                        5  Clifton Hans STEWART (23 Jun 1898 Fort William, Ontario, Canada – 11 Oct 1958 Pass Christian, Harrison, Mississippi, USA)
                           +  Minnie HAYDEN (15 Dec 1897 Murillo, Ontario, Canada – 11 Dec 1938 Port Arthur, Ontario, Canada)
                        5  Frederick Archibald STEWART (8 Nov 1902 Fort William, Thunder Bay, Ontario, Canada – 19 Nov 1959 St. Louis, Mississippi, USA)
                           +  Ruth Marie SWENSON (28 Jul 1903 Duluth, Minnesota, USA – Apr 1988 Duluth, Minnesota, USA)
                        5  Lucy Dorothea “Dorothy” STEWART (11 Jun 1906 Fort William, Ontario, Canada – 1993)
                  4  Arthur Ernest SHOULDICE (27 May 1879 Wakefield, Quebec, Canada – )
                  4  George N. SHOULDICE (1880 – )
            3  Mary SHOULDICE (abt 1850 Quebec, Canada – )
            3  Joseph SHOULDICE 
      2  Joseph IRWIN (1831 Wakefield, Quebec, Canada – )
         +  Elizabeth Jane BROWN (1831 – abt 1891)
      2  Judith IRWIN (1832 Wakefield, Quebec, Canada – )
      2  Foster IRWIN (16 Jul 1835 Wakefield, Quebec, Canada – 4 Jun 1911 Rosewood, Manitoba, Canada)
         +  Jane SHOULDICE (19 Aug 1839 Masham, Quebec, Canada – 19 Jul 1913 Rosewood, Manitoba, Canada)
      2  Mary Jane IRWIN (1837 Wakefield, Quebec, Canada – )
         +  Thomas GRANT 
      2  John IRWIN (1 Jan 1839 Wakefield, Quebec, Canada – 9 Dec 1886 Danford Lake, Quebec, Canada)
         +  Anne HEENEY (1 Dec 1845 Fitzroy, Ontario, Canada – 29 Nov 1902 Danford Lake, Ontario, Canada)
      2  Sidney IRWIN (1 Dec 1842 Wakefield, Quebec, Canada – 1 Jun 1911 Parry Sound, Ontario, Canada)
         +  William MCAMMOND (18 Oct 1834 Nepean, Ontario, Canada – 31 May 1920 Maple Island, Ontario, Canada)
      2  Elvira IRWIN (1843 Wakefield, Quebec, Canada – 1876)
         +  William George WALSH (abt 1840 Ireland – 30 Apr 1911 Cranbrook, British Columbia, Canada)
            3  Mary WALSH (abt 1866 Quebec, Canada – )
            3  William WALSH (abt 1870 Quebec, Canada – )
      2  Thomas Andrew IRWIN (1845 Wakefield, Quebec, Canada – )
         +  Catherine REILLY (1846 Wakefield, Quebec, Canada – )
      2  Sarah IRWIN (28 Jan 1848 Irwin Settlement, Quebec, Canada – )
         +  Abraham MCAMMOND (1842 Nepean, Ontario, Canada – )
      2  Rosanne IRWIN (1849 Wakefield or Masham, Quebec, Canada – 1937)
      2  Abraham IRWIN (29 Jan 1852 Wakefield or Masham, Quebec, Canada – 9 Jul 1853 Wakefield, Quebec, Canada)
      2  Silas Huntington IRWIN (27 Dec 1854 Wakefield, Quebec, Canada – 5 Nov 1932 Miles City, Montana, USA)
         +  Elizabeth A. CARRUTHERS (18 Jun 1854 Huntley, Ontario, Canada – 20 Feb 1925 Miles City, Montana, USA)