┌── Johann Heinrich Kohl (Date unknown - Date unknown)

   ┌── Jan Antonie Clemens Kohl (Stadskanaal, Groningen, Nederland;Wednesday 01 September 1830 - Wednesday 11 June 1890)

   │     └── Fenna Maria Walkenhorst (Date unknown - Date unknown)

Adaucta Elizabeth Kohl(Sunday 30 January 1887 Stadskanaal, Groningen, Nederland - Sunday 01 April 1990 Musselkanaal, Onstwedde,
 Groningen, Nederland)

   │     ┌── Hendrik Hokke(Approximately 1814 Ankum, Niedersachsen, Deutschland - Thursday 11 May 1882 Wildervank, Groningen,
   │     │   Nederland)

   └── Adaucta Elizabeth Hokke(Thursday 02 February 1843 Scharmer, Slochteren, Groningen, Nederland - Wednesday 21 November 1894
       Stadskanaal, Groningen, Nederland)

         └── Catharina Poelman(Approximately 1821 Hoogezand, Groningen, Nederland - Wednesday 09 October 1889 Stadskanaal, Groningen,
             Nederland)