Gordon Allott (R-CO)  
Wallace Bennett (R-UT)  
Alan Bible (D-NV)  
Harry Byrd, Jr. (D-VA)  
Robert Byrd (D-WV)  
Howard Cannon (D-NV)  
Frank Carlson (R-KS)  
Carl Curtis (R-NE)  
James Eastland (D-MS)  
Allen Ellender (D-LA)  
Sam Ervin (D-NC)  
Paul Fannin (R-AZ)  
William Fulbright (D-AR)  
Albert Gore (D-TN)  
Clifford Hansen (R-WY)  
Carl Hayden (D-AZ)  
Bourke Hickenlooper (R-IA)  
Lister Hill (D-AL)  
Spessard Holland (D-FL)  
Ernest Hollings (D-SC)  
Roman Hruska (R-NE)  
Everett Jordan (D-NC)  
Len Jordan (R-ID)  
Russell Long (D-LA)  
John McClellan (D-AR)  
Mike Monroney (D-OK)  
Karl Mundt (R-SD)  
George Murphy (R-CA)  
Richard Russell (D-GA)  
George Smathers (D-FL)  
John Sparkman (D-AL)  
William Spong (D-VA)  
John Stennis (D-MS)  
Herman Talmadge (D-GA)  
Strom Thurmond (R-SC)  
John Tower (R-TX)  
John Williams (R-DE)  
Milton Young (R-ND)  

George Aiken (R-VT)  
Clinton Anderson (D-NM)  
Howard Baker, Jr. (R-TN)  
Bob Bartlett (D-AK)  
Birch Bayh (D-IN)  
Caleb Boggs (R-DE)  
Daniel Brewster (D-MD)  
Edward Brooke (R-MA)  
Quentin Burdick (D-ND)  
Clifford Case (R-NJ)  
Frank Church (D-ID)  
Joseph Clark (D-PA)  
John Sherman Cooper (R-KY)  
Norris Cotton (R-NH)  
Everett Dirksen (R-IL)  
Thomas Dodd (D-CT)  
Peter Dominick (R-CO)  
Hiram Fong (R-HI)  
Robert Griffin (R-MI)  
Ernest Gruening (D-AK)  
Fred Harris (D-OK)  
Vance Hartke (D-IN)  
Philip Hart (D-MI)  
Mark Hatfield (R-OR)  
Daniel Inouye (D-HI)  
Henry Jackson (D-WA)  
Jacob Javits (R-NY)  
Edward Kennedy (D-MA)  
Robert Kennedy (D-NY)  
Thomas Kuchel (R-CA)  
Edward Long (D-MO)  
Warren Magnuson (D-WA)  
Mike Mansfield (D-MT)  
Gale McGee (D-WY)  
George McGovern (D-SD)  
Thomas McIntyre (D-NH)  
Jack Miller (R-IA)  
Walter Mondale (D-MN)  
Joseph Montoya (D-NM)  
Frank Moss (D-UT)  
Edmund Muskie (D-ME)  
Gaylord Nelson (D-WI)  
James Pearson (R-KS)  
Claiborne Pell (D-RI)  
Charles Percy (R-IL)  
Winston Prouty (R-VT)  
William Proxmire (D-WI)  
Jennings Randolph (D-WV)  
Abraham Ribicoff (D-CT)  
Hugh Scott (R-PA)  
Margaret Chase Smith (R-ME)  
Stuart Symington (D-MO)  
Joseph Tydings (D-MD)  
Harrison Williams (D-NJ)  
Ralph Yarborough (D-TX)  
Stephen Young (D-OH)  

Frank Lausche (D-OH)  
Eugene McCarthy (D-MN)  
Lee Metcalf (D-MT)  
Wayne Morse (D-OR)  
Thruston Morton (R-KY)  
John Pastore (D-RI)