Which number president was Theodore Roosevelt?

Under which president did Garret Hobart serve as Vice President? Under which president did Theodore Roosevelt serve as Vice President? Who was First Lady during William McKinley's presidency? Ida McKinley was married to which president? Who succeeded Theodore Roosevelt as President of the United States? Who was President immediately before Theodore Roosevelt? Which political party did President Theodore Roosevelt belong to? Which president served from 1901 to 1909?