My oldest known Karhoff ancestor is Gerhardt Heinrich Karhoff (Abt 1770 - 1855). I have traced him to Schwagstorf. Prior to him, I find no record of his parents. I am wondering if the Karhoff family migrated to Schwagstorf from another area. I see there is a Karhoff Family from Leudingworth, Germany that has recorded births and deaths a hundred years earlier. Perhaps, my line came from Leudingworth. I would be interested in hearing from other Karhoff researchers.