Detroit Golf Club North is one that I can think of. It seems to me to be a good case study, inasmuch as it serves as the "big" course at that club, the one that is the "tournament" course, while the Par-68 South course is the kid brother.
Two Donald Ross courses, such that it is like a medical researcher studying twins.
The South Course was neglected, thankfully, by ambitious tournament committees over the years. Meanwhile, the North underwent a series of facelifts about as often and about as successfully as Phyllis Diller.
Recently, the simple goal for the South Course was to "restore" it with proper, original mowing lines and bunker work.
And to me, the "little" South Course is much more pleasant than the "big" North Course.