And then I found this. A bit pricey, but pretty awesome.
For the link-o-phobes, it's a program menu for FDR's Birthday Ball in 1944 for the benefit of the National Foundations for Infantile Paralysis, which FDR founded in 1938. It's now known as the March of Dimes.
Anyway, Lucy has signed it, as have
actors Walter Pidgeon & Brian Donlevy
John Russell Young – Chairman of the Birthday Ball Committee, member of the Board of Commissioners of Washington, DC.
Fleet Admiral William Leahy – At the time, he was the highest ranking member of the US military.
Brigadier General Albert Lyman Cox – The kind of guy who can't escape getting into the same biz as his father, a Confederate general. Cox went through Harvard Law, was elected to the House, and then appointed to the Supreme Court of North Carolina. Then in 1916, he resigned in order to serve in World War I. In 1938, he became commanding general of the National Guard in the District of Columbia.
The ebay listing then mentions 'and others'.
I managed to identify the two others:
Jose Iturbi - Spanish conductor, harpsichordist and pianist, also starring (as himself) in a few films, including Anchors Aweigh.
And the big find:
General George Catlett Marshall – Army Chief of Staff during WWII. Later, he was Secretary of State under Truman, during which time he came up with a certain post-war plan that bore his name, making him Time’s Man of the Year for 1947, and winning him the Nobel Peace Prize in 1953.
Not a bad find for 'and others'.
So it's signed by Lucy, a Nobel Peace Prize winner, Dr. Morbius and Professor Quatermass.