Can you recall if that Pro Shop was on the Club House side attached to the main building or the stand alone hut on the opposite side of the Putting Green?
In my time there was a small room off the main building above the Putting Green that was the match committee room. If they took out the internal wall between the match committee office and what used the be comp entry bench and Handicap Board foyer I could see that being a small Pro Shop.
I wonder if it was the Golf Club or the Hotel running it. Bet they found out quickly there was no money to be made selling anything else other than drinks, balls and tees.