This is a complete list of members of the United States Senate during the 1st United States Congress listed by seniority, from March 4, 1789, to March 3, 1791.
The United States Senate is the upper chamber of the United States Congress which, along with the United States House of Representatives—the lower chamber—comprises the legislature of the United States. The Senate chamber is located in the north wing of the Capitol Building, in Washington, D.C.
The First United States Congress, consisting of the United States Senate and the United States House of Representatives, met from March 4, 1789, to March 4, 1791, during the first two years of George Washington's presidency, first at Federal Hall in New York City and later at Congress Hall in Philadelphia. With the initial meeting of the First Congress, the United States federal government officially began operations under the new frame of government established by the 1787 Constitution. The apportionment of seats in the House of Representatives was based on the provisions of Article I, Section 2, Clause 3 of the Constitution. Both chambers had a Pro-Administration majority. Twelve articles of amendment to the Constitution were passed by this Congress and sent to the states for ratification; the ten ratified as additions to the Constitution on December 15, 1791, are collectively known as the Bill of Rights.
Contents
The order of service is based on the commencement of the senator's first term, with senators entering service the same day ranked alphabetically. The Senate now assigns an official number to each senator, which is the second number given in the table. [1]
During this time, there were no official parties, but senators are labeled as Pro-Administration (P), and Anti-Administration (A).