I have info on the IOM Gicks who were farmers and landowners in the south of the Island. I have traced them back to around 1680.
Often wondered did the Gicks go from the Island to Germany, or from Germany to the Island (IOM).
The IOM has strong ancestral links to the Vikings who once controlled it, until it was taken from them by the Scots under Robert the Bruce.
The parliament 'Tynwald' goes back to the Vikings. Parts of North Germany adjoin Viking lands (Scandanavia)so it is possible the Gicks of IOM go back to Viking settlement.