How about Breumueller, which is another spelling of Braumuller (add your own umlauts)? A miller who does a bit of brewing on the side, or maybe it's another name for a brewer? I vaguely recall another German surname on this board which combined two occupations. There is a place called Brem in Germany, not to mention Bremen, but I haven't found a Bremmueller, "miller of Brem(en). I think the capital M is just a conceit. Maybe some Bremillers thought of splitting the name, or even dropping the Bre-.