first inauguration of Theodore Roosevelt as the 26th President of the United States , took place on Saturday , September 14 , 1901 at the Ansley Wilcox House , at 641 Delaware Avenue in Buffalo , New York , following the death of President William McKinley earlier that day . The inauguration marked the commencement of the first term ( a partial term of ) of Theodore Roosevelt as President . John R. Hazel , U.S. District Judge for the Western District of New York , administered the Oath of office
death
Assassination of William McKinley
First inauguration of Theodore Roosevelt