• President (R): Schuyler Colfax
  Schuyler Colfax
  Schuyler Colfax, Jr. was a United States Representative from Indiana , Speaker of the House of Representatives , and the 17th Vice President of the United States . To date, he is one of only two Americans to have served as both House speaker and vice president.President Ulysses S...
  
  
• President pro tempore
  President pro tempore of the United States Senate
  The President pro tempore is the second-highest-ranking official of the United States Senate. The United States Constitution states that the Vice President of the United States is the President of the Senate and the highest-ranking official of the Senate despite not being a member of the body...
  
  : Henry B. Anthony
  Henry B. Anthony
  Henry Bowen Anthony was a United States newspaperman and political figure. He served as the editor and later part owner of the Providence Journal and later was the 21st Governor of Rhode Island between 1849 and 1851, as a member of the Whig Party.The son of William Anthony and Mary Kennicut...
  
   (R)

• Speaker
  Speaker of the United States House of Representatives
  The Speaker of the United States House of Representatives, or Speaker of the House, is the presiding officer of the United States House of Representatives...
  
  : James G. Blaine
  James G. Blaine
  James Gillespie Blaine was a U.S. Representative, Speaker of the United States House of Representatives, U.S. Senator from Maine, two-time Secretary of State...
  
   (R)

This list is arranged by chamber, then by state. Senators are listed in order of seniority, and Representatives are listed by district.
Senators were elected by the state legislatures every two years, with one-third beginning new six year terms with each Congress. Preceding the names in the list below are Senate class numbers

Classes of United States Senators

The three classes of United States Senators are currently made up of 33 or 34 Senate seats. The purpose of the classes is to determine which Senate seats will be up for election in a given year. The three groups are staggered so that one of them is up for election every two years.A senator's...

, which indicate the cycle of their election.