My wife's Knop and Greve (how the names were spelled in birth records) ancestors were born in Herringhausen in 1822 and 1823 and died in Cincinnati OH. We know all their ancestors back 3 generations from those 2. We are planning a visit to Herrringhausen in 2009 or 2010. Do you know of any way to find out if there are descendants of their parents still living in the area. Thanks.