+———CASEY
  |    
  Tulsa CASEY 
  |        
  |   +———Tom CLARK
  |   |
  +———Andrea CLARK
      |        
      |   +———Maurice YOUNG ( – Aug 1992)
      |   |
      +———Wrenda YOUNG
          |                
          |           +———William MCELROY
          |           |
          |       +———Robert MCELROY (16 Mar 1856 Ireland – 16 Jan 1916)
          |       |
          |   +———William Lorne “Lorne” MCELROY (8 Aug 1888 R. M. of South Dufferin, Manitoba, Canada – 1958)
          |   |   |    
          |   |   +———Mary Elizabeth “Elizabeth” MORRISON ( – 1946)
          |   |
          +———Ina MCELROY
              |    
              +———Frances GREENACRE ( – 1988 Manitoba, Canada)