Child of Wilhelm Nikolai Martens and Aganetha Martens Spouse of Private Parent of Nicolai Jacob Martens; Maria Jakob Bahnmann; Helena Wall; Jacob Martens and Private Sibling of Wilhelm Martens; Helena Schroeder; Johann Wilhelm Martens; Anna Martens and Maria Schmidt Half sibling of Private; Katharina W Thiessen; Heinrich Wilhelm Martens; Heinrich Martens and Elisabeth W R Martens