Sorry for the late reply. I was never notified of this message and since this board is seldom used I don't check it often.
I do have a Peter Nihoff b. 1816 in Palatine, NY married to a Mary Unknown but he stayed in Palatine as far as I know. He's still there in 1870. If he bought land in Oneida Co I don't think he ever went there. The John Nihoff in Richfield is Peter's brother, who later moved to Iowa.