sorry, my English is not the best this time. My Family-Name is the same as yours. I´ve heard the Name Gochsheim out of my Father´s mouth a view years ago. Perhaps it has something to do with your investigations. If you want I could ask him for more Informations, if you are interested. I life in Southern Germany between Ulm and Stuttgart, but my Father was born in Münchberg (Bavarian).
Kindest Regards and have a nice Chrismas, Hans-Ulrich