+———John OLIVE (1788 Borriskane, Ireland – 27 Apr 1867)
          |
      +———Thomas OLIVE (1834 Ontario, Canada – bet 1891 and 1901 Ontario, Canada)
      |   |        
      |   |   +———William CAVANAGH (1759 Tipperary, Ireland – abt 1819 Tipperary, Ireland)
      |   |   |
      |   +———Mary CAVANAGH (abt 1800 Tipperary, Ireland – 16 Oct 1867 Huntley, Ontario, Canada)
      |       |    
      |       +———Elizabeth “Eliza” DONNELLY (abt 1769 Tipperary, Ireland – abt 1829 Tipperary, Ireland)
      |
  +———Frederick OLIVE (1867 Ontario, Canada – 1958)
  |   |    
  |   +———Alesha GREENE (18 Dec 1839 Ireland – 4 Jan 1914)
  |    
  Viola Beatrice Teresa OLIVE (7 Sep 1904 Port Arthur, Ontario, Canada – aft 2 Nov 1983)
  |        
  |   +———David EGAN
  |   |
  +———Bridget Catherine EGAN (1875 – 1957)
      |    
      +———Bridget MCCORMICK