In my family there were 3 Johann(John) Mehlhop brothers who came to America from Hanover Province, Germany between 1830& 1840 They all arrived at New Orleans.Johann Heinrich went by Henry Mehlhop traveled up the Mississippi and settled near Havanna, Illinois where he married and raised a family. Another Johann Heinrich Dietrich went by John Mehlhop and raised a large family in Dubuque,IA after loosing a wife and children to Cholera in St.Louis. The third Johann Mehlhop stayed in the New Orleans area. We believe he went by John Mehlhop also but either he or another Johann Frederick added an "e" to Mehlhope and settled in the Nashville/Clarksville area before moving to Cincinnati. If your John D. Mehlhop could be related to any of these let me know. I have some information about the family farm in Germany and the little village named Mehlhop, as well as the 3 families.