That's it Donnie, unless another identical clubhouse was built somewhere else which I seriously doubt. Thanks for the identification. This photo was circulated through the USGA Museum/Library Committee and no one could figure it out. This clubhouse showed up on a film that was of Merion East that Merion's historian John Capers got his hands on recently. He asked the USGA Library/Museum Committee and no one seemed to know so I told him if this photo could by posted on GOLFCLUBATLAS, I'd practically guarantee that someone on here would figure it out.
You DA MAN! For this you get a free USGA Library card for one year and a sleeve of non-conforming golf balls. If you get lucky you may even get the chance to play a round with Iron Byron!