Peter, My family came over in 1860 from Germany. He (Thomas or Joseph Brehm) came from a small dorf (village) near Aschaffensburg (actual city has been incorporated into a larger one. It starts with an O and is near Frankfurt). If you look on the german web for Aschaffensburg (probable not the correct spelling) you will be able to find the actual city, which has a website that has many Brehm's listed as hosting the site.
There is also a restaraunt in Mannheim, Germany named Brehm. (it's near the post office several blocks from the city garden.) Good luck. Kris Angell