I am looking for ancestors in Germany / Poland of

Herman Friedrich Wilhelm Bellin b. 9-23-1841 in Schruptow, Germany/Poland.
His father was listed as Peter Bellin, mother listed as Johanne Charlotte Augustine Kohn.

Herman married Louisa Friederika Charlotte Klockmann/Klockzien. date unknown

I have been unable to find any information other than his birth prior to his coming to America.
I assume he married in Germany and do know they had one child in 1868 (Albert) prior to coming to America. He immigrated in July of 1869 arriving in NY and eventually going to Neenah area of Wisc.

Information on Peter Bellin will be appreciated also.

I cannot find the family on any earlier records, and do not have enough records found to tie any of the people related to Bellin that I have found in the area together.

Herman listed Knurrbush as his home on his immigration records. Family so far has been around Schruptow, Nitznow, Karnitz areas of what is now Poland.

Any help greatly appreciated.