1  David EASTMAN 
   +  Minnie LAUGHLIN 
      2  John Mervyn EASTMAN (10 Oct 1894 Fitzroy, Ontario, Canada – 11 Jun 1952)
         +  Mabel CAVANAGH (27 May 1893 Fitzroy, Ontario, Canada – 18 Jul 1970)
            3  Donald Mervyn EASTMAN (1 Jan 1924 – 9 Jun 1945 England)
            3  EASTMAN (8 Jun 1926 – 8 Jun 1926 Ottawa, Ontario, Canada)
            3  Doris EASTMAN