Ben,
Since you mentioned Jackie Kennedy, here is the plaque from Grand Central. Your topic is so long, not sure if we posted it before.
Also, I included an old IRT (platform pillar) subway sign, circa 1910, probably from IRT W.34th Street - PENN. STA. Detective work provided by the great Joe Frank, fellow Mt. St. Michael (Bronx high school) graduate. I picked up the subway sign from the White Plains Toy & Train Show this past Sunday. The best $45 I ever spent.
Tom