Mark,
I worked golf maintenance in two college summers at a (for the times) high end public course near Chicago in 1973-4.
Greens mowed every day but Monday at 1/4". I vaguely recall that the private clubs had just gone down to a bit tighter cuts.
Besides the Monday rest day, once a week, we took out the walk mowers to reduce the stress caused by riding mowers, and we also skipped the clean up pass around the green edge from time to time, which caused more stress.
Tees and fw at 1/2" or 5/8", mowed 3X per week. Rough mowed once per week, usually on Thur or Friday to make it easier for weekend play.
Single row fw irrigation, some quick couplers, others automated (a hole a year, and they were midway through) while most greens had 4-5 sprinklers. A few still had a single center sod cup!
All poa annua. Roughs got a bit toasty in the Chicago summer since they got no water, but fw was always green and lush (as were a few patrons!)
Sprayed pesticides once a week whether it needed it or not, which wouldn't happen today. DDT was banned that year, so we stocked up a bunch, maybe ten years worth.
I recall the 1/4 inch poa/bent greens as being a bit bumpy, and would have no idea what the stimp reading was. Most greens (I measured later when remodeling some of them) were in the 3-4% slope range, though, as opposed to 1.5-2.5% today.
Just my memories. You are in a different location, but at least 40 years ago, that was the state of a decent course maintenance program near Chicago, IL, USA