Hi,
I noticed this website that may help you
www.gisa.org.za/.../GISA%20Beugger%20stam%20in%20SA%20(2).rtf
It is an rtf document regarding the descendants of Emil Beugger.
At the bottom of this docment is an email address and postal address, although this was posted on the net in 2007, it is worth a try.
You can always use https://translate.google.com/ to assist with any translations.
Good Luck