My village of Much Puzzling has a baker, a brewer and a butcher. The other day I was talking to the baker's wife and she remarked that these three jobs were held by a Mr Baker, a Mr Brewer and a Mr Butcher but, of course, no man held the job corresponding to his surname.

"But everyone knows that, even a newcomer like myself." I responded. But she continued "I'll bet you don't know what Mrs Brewer told me just the other day. Each of the men married the sister of one of the other men and no man married a girl of the same name as his occupation!"

"No I hadn't known that. That's quite remarkable."

What was the butcher's wife's maiden name?