In 1929, three women, Lillie P. Bliss, Abby Aldrich Rockefeller, and Mary Quinn Sullivan, joined forces to establish a museum based in New York City that was devoted exclusively to modern art. Over the course of the next 15 years, over one and a half million visitors paid their respects to the result of their efforts: The Museum of Modern Art. As it turns out, a tiny percentage of these visitors are memorialized in a leather-bound guest register that was brought out by Museum staffers for only its most illustrious guests to sign. The guest book, which now resides in our Archives, is a fascinating document from MoMA’s fledgling years and serves as a reminder of the appeal of the Museum to well-known figures from a wide range of social, professional, and cultural backgrounds.