Maids; addressing a butler in contemporary England
How would maids in a household address the butler of the household in contemporary England? By his first name, his last name, Mr. (last name), or something else? And maids these days are simply called "maids" not parlormaids or something old-fashioned like that? Or am I wrong?
(I realize not so many houses employ butlers these days but this one is canon, and in a very large home.)
Thanks so much to anyone who can help. I did try Google but between ads for butler training and people named "Butler" I didn't get far.