Hello Tim,
now you can find the Kenkel family on our page www.auswanderer-oldenburg.de.
Uekötter is common in the region Münster. So I would search there. Berkemeyer could have come from the region Neuenkirchen (Oldenburg), but I have no informations on him.
If you have informations about Anna Catharina Kenkel, her husband and their children and about the Berkemeyer famlily I would ask you for send it to me for our database.
Best regards.
Gunter