I was quite surprised to see your name. My great great grandparents were named Christopher H. V. Pankow and Sophia Koeltzow...at least those are the names I have for them. Christopher doesn't sound very German to me, and they were supposedly from Penzin, Mecklenburg, Germany. You can see what else I know about them (very little) on the other post I made in this forum. Have you had any luck in researching your ancestry?