Sorry to have missed this, as I haven't been on in awhile.
Ronnie was an amazing guy and loved his Crystal Downs, riding his old 1940's blue Toro tractor around the course, setting cups and perusing the entire place in slo-mo. He started in 1928 and missed only 5 years during the Depression and WWII, when he worked for the CCC. His cousin, Clive, worked on the course, starting in 1937 and I spent a day with Clive in 1994 going around the course and getting his recollections about the course, some of which were attributed to Ronnie. He never mentioned any drawings but the club history written by Frederick R. Baird has the founder's recollection from 1966, 40 years after the origin of the club. In there, it states "He (MacK) and Perry Maxwell worked almost around the clock until they had laid down holes and torn them up and laid them down again, emerging finally with the eighteen hole layout that we know today. . . . Nevertheless, MacKenzie and Maxwell went ahead, and MacKenzie, an excellent artist, painted detailed pictures for the contours of every green."
So I believe these could be the sketches that were first carried out on that visit, but they do not resemble what is in the ground today. As Tom noted, the 18th sketch is close, but the 0, +3, 0, +5, +2, +6 elevations on the green are not really close to what's there, although in concept the shape and back to front slope is severe. Clive's recollection was that the green was supposed to come back up the hillside that is left of the current fairway, but Maxwell changed the location of the green to the current one. Clive also noted that the boomerang 7th green was supposed to go further to the right, up the valley towards 6 tees and not around to the left - and when MacKenzie came back to visit (no particular date given), he was quite mad about the change. I am not sure if MacK ever saw the 18th green's location from the original location or not.
Regarding the back nine greens, from 1943-1946, the back nine upkeep was abandoned due to the war and lack of funds. According to Mr. Baird's history, "It was not until 1946 that the Club did the necessary work to revive the second nine and play was resumed in 1947. In this restroation of the back nine it was necessary to work over and completely replant the greens." Roy Oliver, original builder and greenkeeper of the course was still with the club (retired in 1961), and would have been responsible for doing the repairs -- since he worked closely with Maxwell throughout the construction, I do not think they should have been altered too much in the replanting.
I am excited to get a copy of the book and see the sketches up close. Maybe there is hope that the rest of them will show up one of these days!
Cheers,
Mike