+———David MCMULLEN
  |    
  David MCMULLEN (16 Sep 1874 Artemesia, Ontario, Canada – 13 May 1909 Grey Co, Ontario, Canada)
  |            
  |       +———Thomas A. MADILL (Ireland – )
  |       |
  |   +———Alexander L. MADILL (1804 County Antrim, Ireland – 3 Oct 1889 Eugenia, Grey Co, Ontario, Canada)
  |   |
  +———Jane MADILL (1839 Canada – )
      |    
      +———Mary Irene STEWART (12 Feb bet 1820 and 1823 County Caven, Ireland – 18 Feb 1898 Eugenia, Grey Co, Ontario, Canada)