I am doing some Master Planning at Superior National, where the original 18 holes were from Don, with a new nine added by Joel Goldstrand later. In viewing the course, I got a new respect for Don. His holes really laid on the land so naturally. He could really route a golf course on difficult property.
Granted, some of the bunkeringwas 50's style on a 1998 course, but they were in the right places. In comparison, the Goldstrand nine suffers by being a bit over cooked, IMHO. (Although, JG was ersponible for the great river holes. And, he got some probably justifiable grief here for his 18th green at White Bear Yacht Club, which does stick out as not being in style. That is just the way that generation of architects thought, I believe.
I met Don a few times at ASGCA meetings, and he was as nice a guy as you could want to know. I noted one of his daughters had died, and I recall meeting her at a meeting as well. Just a nice family.