Jim,
Welcome to the Treehouse.
The short story on Mill Road Farm: Lasker started it because he was a member of another club and found it too crowded. When you're a tycoon, you can do that. It was his backyard estate course (think Rich Harvest Farms today). It opened in 1927, invitation of Lasker only. Every guest got a card with No. 1 on it. Mill Road Farm had the highest course rating in the CDGA, ahead of Medinah No. 3, while it existed.
Armour was the first to break par but not the only. Head pro Dick Metz – Lasker's private teacher – scored 7-under 65 on July 2, 1936.
In 1940, Lasker moved to New York and donated the estate, golf course and all, to the University of Chicago, of which he was a trustee. The U of C ran it for a short time, during which the Western Junior, the only outside tournament played there, was held. With the war looming and the Depression still a factor, the university closed Mill Road Farm. It was sold to developers in 1946 and turned into a subdivision.
Many of the original buildings still stand, including Lasker's home, which had been split into apartments and now is a single-family home again.