Tyler,
I haven't been to Richmond CC in several years now, but I remember thinking the greens were kinda like mini versions of the turtlebacks at Pinehurst No. 2. They're very severe, aren't they.
I do know that Macan designed/built the Richmond course some time in the early 1950s, I think; and that he had very little money to do so... $150,000, or thereabouts, comes to mind.
As you know, the Richmond property is FLAT. My theory is, without resources required to move much earth, Macan simply created some wild greens as a simple means to make for relatively interesting golf. The course isn't great, but it's certainly memorable because of the greens.
Re Cal Club. Macan was involved there. If my memory serves correctly, he redesigned the club's original course some time during the 1920s. Shortly thereafter, Cal Club brought Mackenzie in to do more redesign work.