Here's a 1969 aerial of the first golf course I ever played, the inimitable nine hole Scott-View Golf Course in Montdale, PA. My first round took place about two years after this photo, on July 13, 1971, nine days before my 13th birthday.
I've painted in a little red arrow to indicate the "clubhouse", which as you can see has a smaller footprint than the adjacent 2nd and 9th greens. However, it housed a little cash register with used balls, tees, and rental clubs (kept in a back closet) for sale, and a nice lunch counter with about 8 seats where they'd serve up Stewart Sandwiches and chips, and there was a coke or pepsi box in there, the kind where you had to reach in to pull out your bottle. They also had some golf and sports magazines laying around and it was here I discovered the June 1971 article previewing the US Open at Merion in a wonderful piece titled "The Ghosts of Merion" that spurred a life-long fascination with that course.
I'm still not sure why anyone would need anything more.