^ Nathaniel Fillmore, the first father of a President to visit his son at the White House, told a questioner how to raise a son to be president: "Cradle him in a sap trough."[9][10]

^ Fillmore's uncle Calvin Fillmore served in the New York State Assembly;[28] another uncle, Simeon Fillmore, served as town supervisor of Clarence, New York.[29]

^ South Carolina did not yet use the popular vote for choosing electors, with the legislature electing them instead.

^ Until 1913 senators were elected by the state legislatures, not by the people.

^ The modern-day states of New Mexico and Arizona, less the Gadsden Purchase

^ The U.S. Constitution designates the vice president as the Senate's presiding officer.

^ The term derives from the transportation vehicle, as the bill carries all the related proposals as "passengers".

^ Calhoun was dead, Webster was Secretary of State, and Clay was absent since he was recovering from his exertions on behalf of the bill at Newport, Rhode Island.

^ Fillmore thus became the first former president to receive electoral votes, a distinction that later also included Grover Cleveland (1892) and Theodore Roosevelt (1912).