Sean,
There is a very high res copy of this photo and there are a few things I'd point out.
First, the guy on horseback was a park ranger, who used to regularly patrol the course enforcing rules and policing mischief.
What I'd give to bring a few of those back today!
There is also a "hole number sign" directly behind the green. These were standard back then.
As it's a winter scene, they are playing to a temporary green off to the right, near the 5th tee. In the high res photo you can see the flag over there.
And benches...that last vestige of a civilized society....we should see more of them, not less.