1  Capt. GRIERSON 
   +  (Name Unknown)
      2  GRIERSON 
         +  (Name Unknown)
            3  Anne GRIERSON 
               +  Hugh Umstad ROVINSON 
                  4  Elizabeth Queensbury Douglas ROVINSON (11 Oct 1854 Fitzroy, Ontario, Canada – 1930 Wichita, Kansas, USA)
                     +  Cyrus SULLIVAN (10 Aug 1848 Fitzroy, Ontario, Canada – Nov 1912 Wichita, Kansas, USA)
                        5  Alden Newton SULLIVAN (14 Apr 1878 Kechi, Kansas, USA – 18 Mar 1946 Wichita, Kansas, USA)
                           +  Fannie Maude DORATT (28 Jul 1881 – 3 Mar 1941 Wichita, Kansas, USA)
                        5  Cyrus Clayton SULLIVAN (18 Apr 1881 Ontario, Canada – 1938 Wichita, Kansas, USA)
                        5  Arthur Douglas SULLIVAN (20 Sep 1889 Sedgwick, Kansas, USA – 1911 Wichita, Kansas, USA)