The archive of FDR documents from the collection of his personal secretary, Grace Tully, is now being (slowly) released by the National Archives, the
Times reports today. The cache of some 5,000 documents (first
discussed here back in November 2009 and
again in February) is currently being processed, but nine never-before-public documents were released yesterday; you can see them
here.
I think my favorite is the 26 November 1943 letter from FDR to Tully on the Cairo Conference, which ends: "I've seen the Pyramids and made close friends with the Sphinx. Congress should know her."