The course was officially opened in 1911
It had been "test-playable" at least a year earlier.
Charlie Macdonald had some of his closest friends and founders there for a highly publisized event in 1910. Some of the greens (holes) were shorter than they ended up to be, namely the 9th and thr 18th which were one entire green shorter than where the ended up. Perhaps these were what we consider temporary greens today, or perhaps they were just not "ready" for play.
I think some of the other holes had more forward tees.
I have the yardages someplace here.
An interesting article was written about the early course (or its concept) that had hole.#2 at 295 or so, calling it a par three and a half. The measurement places the middle of the green at the high area short of the present green, a possibility that had come to my mind long before this article surfaced and one Karl Olson and I had discussed.