The Ansley Wilcox House in Buffalo, New York, is the place where Theodore Roosevelt took the presidential oath of office on September 14, 1901, after William McKinley’s assassination made an immediate inauguration necessary. Built originally in 1840 as officers’ quarters for the Buffalo Barracks, it later became a private residence and was extensively renovated by Ansley Wilcox and Mary Grace Rumsey. About 50 officials, relatives, and cabinet members gathered in its front library as Federal Judge John R. Hazel administered the oath. Later altered as a restaurant, the house was protected as a National Historic Site in 1966 and now serves as a museum tied to Roosevelt’s accession and the Pan-American Exposition.