I have Hajo (Harms) Onken married to Fredericka Marguertia Goeken b. Sep 25, 1825 in Waddewarden, , Oldenburg, Germany. They had 6 children- Wilhelm George Christian Onken b. abt. 1848, Henry Onken, Rhinhart Onken, Frederica Onken, Amalia Onken, and Mary Onken. Can anyone help me with the family of Hajo Harms Onkens line? I would appreciate any help I can get. Thank you, Stephanie