+--Johan Hermann Graman  (1733-25 Jul 1806)
   +--Johan Bernard Graman  (19 Dec 1771-24 Aug 1804)
   |  +--Luzia Adelheid Bange  (24 Nov 1737-14 Aug 1789)
+--Hermann Heinrich Gramann  (5 Jul 1803-27 Apr 1880)
|  |  +--Johan Hermann Kolkers 
|  +--Catharina Elisabeth Kolkers  (3 Sep 1769-23 Jul 1826)
|     +--Margaretha Catharina Elisabeth Dieker 
Hermann Friedrich Anton Grahmann  (23 Dec 1843-28 Dec 1925)
|  +--Johann Gerd Arendt Wellmann 
+--Anna Maria Gerdrud Wellmann  (29 Nov 1803-9 Sep 1867)
   +--Anna Margaretha Elisabeth Feldmann