01/05/2026
This is pretty cool. There probably aren't too many mansions that have themselves facilitated events of historical significance. But one of those is in Tuxedo Park NY, owned by Alfred Loomis at the time of the event, which was development of radar just on the cusp of WWII. There's a good book about it, too: “Tuxedo Park: A Wall Street Tycoon and the Secret Palace of Science That Changed the Course of World War II” (Conant, 2003). Cheap copies abound on Alibris. Here's a short summary:
[Legendary financier, philanthropist, and society figure Alfred Lee Loomis gathered the most visionary scientific minds of the twentieth century -- Albert Einstein, Werner Heisenberg, Niels Bohr, Enrico Fermi, and others -- at his state-of-the-art laboratory in Tuxedo Park, New York, in the late 1930s. He established a top-secret defense laboratory at MIT and personally bankrolled pioneering research into new, high-powered radar detection systems that helped defeat the German Air Force and U-boats. With Ernest Lawrence, the Nobel Prize-winning physicist, he pushed Franklin Delano Roosevelt to fund research in nuclear fission, which led to the development of the atomic bomb.
Jennet Conant, the granddaughter of James Bryant Conant, one of the leading scientific advisers of World War II, enjoyed unprecedented access to Loomis' papers, as well as to people intimately involved in his life and work. She pierces through Loomis' obsessive secrecy and illuminates his role in assuring the Allied victory.]
I read the book not all that long after it came out, and about 8yrs ago PBS did a special on Loomis and his secret lab, that people like Einstein Niels Bohr, Ernest Lawrence, Enrico Fermi, and Werner Heiusenberg had visited.
But what did/does it look like inside? Now it's for sale, and if you can mentally subtract some of the modern furnishings you can get a sense of the interior here. (I'm not a great fan of Tudor, bit the rustic stonework is great, as is the rustic setting):
On top of a scenic mountain with nearby lakes and within beautiful gate-guarded Tuxedo Park, the Loomis Lab is a three-storey stone and timbered mansion built in 1901 for Spencer Trask, philanthropist and founder of art colony Yaddo.