I agree that this might be a bit of a threadjack, but I'd rather not start a new WBYC thread. I would like to contribute one more piece of information to consider.
In 1913, Minneapolis Tribune golf writer George Rhame wrote about the original 9 holes at WBYC: "It is affectionately known as a 'goat course.,' and it is deserving of the name. The only level spots upon it, worth while, are the putting greens, and some of them are not on the level." Later that year, Rhame wrote, "The White Bear course, a nine-hole invention, has no bunkers, nor does it need any. Lucky is the man who playing it for the first time, can equal bogey 40 for the nine holes. From start to finish it is a chase after the pill, which if care is not taken, will often lead to rough grass in unexpected valleys. Anyone looking for sporty golf can find it on the links of the White Bear course. Eventually it is intended to cut down some of the 'mountains' and fill in the 'fathomless' pits. It will also within the next two or three years, be enlarged to an 18-hole course. The club is the owner of the necessary amount of long."
A year later, in 1914, Rhame's opinion of the course seemed to have declined, calling it "a mixture of golf holes that will keep the best of the golfers guessing a good part of the time. It is a sporty course, and dubbed by many, badly defeated by Colonel Bogey, as a goat pasture."
These descriptions do not match up with what was being written about the course by 1920, nor do they sound like a recently opened Donald Ross course. Perhaps some of his work from that era was a bit crude in the beginning, but if Ross's hand was on WBYC, it seems more likely to have come later in an upgrade of the course's quality. The 1915 surveyor's map would fit that timeline -- a Ross expansion to 18 holes, with the course assuming its current routing and polish.
But the truth is, we don't know exactly who did what, and when. I've go no investment in this other than an attempt to learn more about the origins of WBYC. I'd be happy to report back here at some point that I found documentation that Watson was the sole architect and Ross merely an interested adviser.