Charlie, yeah, I found out about Mory's Temple Bar, run by Louis something-or-other, (i.e. "the place where Louis dwells") when I followed Joe's link to the official Whiffenpoof web site and read their history, written by one of the original five who started singing together in 1909. What a great site! -- They also describe how the song was written as a parody of Gentlemen Rankers.
This is a fine thread, Dick. - Rita F