Pat
Your source probably would tell you two courses initially were planned, a "championship" course and a "ladies" course, the latter being jettisoned along with other doo-dads when memberships failed to materialize.
But can he locate in the club records a date for the specific idea of hosting an Open, or would he too have to go to Roberts's book, where the date given is late 1932? And does he say whether the main purpose of getting the Open in 1934 -- before the place was really finished -- was to sell memberships? Or was the idea all along to target 1934 for the Open? The plan for the Open and the use of the word "championship": there's the marketing and there's the design. Can your source separate the words from the (design) actions?
Your source also must know that in October 1931 MacKenzie wrote a lengthy description of the holes, and Roberts asked him to supplement it with "two or three paragraphs detailing the fact that Bob collaborated with you on all phases of the plans and due to the fact that Bob had studied civil engineering, and due also to the fact that he is of a studious nature and studies carefully each course that he plays on, he was of very genuine and very practical help to you. You might also add that he contributed several ideas that were distinctly original."
That establishes the ideas as MacKenzie's first -- those hole descriptions and Roberts's suggestions found their way into the 1932 American Golfer article, where MacKenzie never mentions anything more specific than "expert" and "championship tees."
Anyway, these are nits, aren't they? The really sad thing is here's a designer who believed in designing golf courses that could test the best and provide fun for the dub. He was perhaps the first and probably the best designer ever to break that forced compromise -- away from the sea.
He worked really hard to figure out how to meet the ONE goal of greatest pleasure for the greatest number. Most (all?) designers then and today don't seem to really understand or know how to do that, nor do the leader(s) at ANGC.
Maybe as you got at it in your other thread, the forced compromise came back to the club starting in 1980. It seems more late 1990s to me. Either way, the great majority seems to think that MacKenzie's ideal can be met no longer.
I don't know. If we accept the premise of "defend par" then the answer's probably "no." But just as the stewards of the game haven't done what they should do, it seems like there's been a poverty of imagination down there in Augusta. They appear intent on challenging the best from the tee forward and not, like Jones wrote, "by the introduction of subtleties around the greens."
It might have been easier to design the "ideal" course back in the Golden Age, but that doesn't mean it was easy back then or that most designers could do it well. Maybe it's one of those talents that's always in short supply, just more acutely felt today than ever before.
Mark