Hello, my great grandfather is William Braun as well, but of course that was a common name back in the day. I don't know what part of Germany he is from or where his wife came into the picture (Eliesa Kriehn). There are just so many Braun's!
At this time I do not know where in Germany my Braun family came from. My 2nd great grandfather William Braun immigrated around 1880 to N.Y.
My 2nd great grandfather Jacob FLANDERS/FLATUA was born in Germany and immigrated ( date unknown) to London in the Aldgate area. Then he and the family came to N.Y in 1874. He was Jewish and was a tailor.
If you think there might be a connection let me know. Are you on Ancestry? If so I'll send you an invite to view my tree.