1  Jane SMITH 
   +  Charles LAWSON 
      2  Jean LAWSON (1879 – )
         +  Arthur CAVANAGH (1877 – aft Sep 1944)
            3  Eric Mervin CAVANAGH (4 Aug 1905 Fitzroy, Ontario, Canada – 1955)
               +  Winnifred E. HAYDON (1910 – 1987)
            3  John Cecil CAVANAGH (9 Mar 1907 Fitzroy, Ontario, Canada – )
            3  Elmer Arthur CAVANAGH (4 Feb 1909 Fitzroy, Ontario, Canada – )
            3  Edna Jean CAVANAGH (29 Oct 1911 Fitzroy, Ontario, Canada – )
            3  Gordon CAVANAGH (1915 Fitzroy, Ontario, Canada – 27 Aug 1915)