+———John FOREST (1787 – 1883)
      |
  +———John FORREST (3 Dec 1806 Lesmahagow, Lanark, Scotland – 8 May 1883 Renfrew, Ontario, Canada)
  |   |    
  |   +———Marion GILCHRIST
  |    
  Andrew S. FORREST (1849 – 1929)
  |        
  |   +———John STEWART
  |   |
  +———Mary J. STEWART (1809 Carluke, Scotland – 22 Jan 1879 Renfrew, Ontario, Canada)
      |    
      +———ALEXANDER