Thanks for your reply. I have traced the family name back to Owiegen, Germany, which is about 75 km (miles) south of Stuggartt Germany, also I have found out that our last name was "ROGGENSTEIN" , but "ROCKENSTEIN and ROGGENSTEIN" mean the same and when pronounced by a german, it sounds the same. What kind of family info do you have on your family? Some how I think this name is all related in some way, put it is a very large puzzle.
Do you live here in the states? Hope to hear from you again.