Do you have any record of a George Adam Kurtz who married a Christina (?)? Their daughter, Catherina, married Frantz Harter(Herder) 3 Oct 1787 in Frederick County, Maryland. To date I have found no record of this particular name in the Kurtz family(s) of the time. They probably met in Maryland, but who knows? Frantz's parents were married in Northampton(Lehigh) County.