Now that I have a photo of all the Junghans brothers that left Germany in the 1800's and came to America as either a Junghans or Yunghans, here they are:
|Otto Heinrich Junghans, Paul Richard Junghans & Carl F Yunghans|
The two eldest brothers, Emil Heinrich and Carl Frederick changed their last name to Yunghans from Junghans sometime after they left Germany for America. The two younger brothers, Otto Heinrich and Paul Richard opted to keep the "J".
Unfortunately I have yet to find a photo of the Yunghans/Junghans brothers together or of their parents.