| Pre-boomer | Brock Adams,
Daniel Akaka,
Max Baucus,
Lloyd Bentsen,
Joe Biden,
Jeff Bingaman,
Kit Bond,
David Boren,
Bill Bradley,
John Breaux,
Hank Brown,
Richard Bryan,
Dale Bumpers,
Jocelyn Burdick,
Robert Byrd,
John Chafee,
Thad Cochran,
William Cohen,
Alan Cranston,
Jack Danforth,
Dennis DeConcini,
Alan Dixon,
Chris Dodd,
Bob Dole,
Pete Domenici,
Jim Exon,
Wyche Fowler,
Jake Garn,
John Glenn,
Slade Gorton,
Bob Graham,
Chuck Grassley,
Tom Harkin,
Mark Hatfield,
Howell Heflin,
Fritz Hollings,
Daniel Inouye,
James Jeffords,
Bennett Johnston,
Nancy Kassebaum,
Robert Kasten,
Edward Kennedy,
Bob Kerrey,
John Kerry,
Herb Kohl,
Frank Lautenberg,
Patrick Leahy,
Carl Levin,
Joseph Lieberman,
Trent Lott,
Richard Lugar,
Connie Mack,
John McCain,
Mitch McConnell,
Howard Metzenbaum,
Barbara Mikulski,
George Mitchell,
Daniel Moynihan,
Frank Murkowski,
Sam Nunn,
Robert Packwood,
Claiborne Pell,
David Pryor,
Harry Reid,
Chuck Robb,
Jay Rockefeller,
William Roth,
Warren Rudman,
Terry Sanford,
Paul Sarbanes,
James Sasser,
John Seymour,
Richard Shelby,
Paul Simon,
Alan Simpson,
Arlen Specter,
Ted Stevens,
Strom Thurmond,
Malcolm Wallop,
John Warner,
Paul Wellstone,
Tim Wirth,
Harris Wofford | Conrad Burns,
Dan Coats,
Larry Craig,
Alfonse D'amato,
Wendell Ford,
Phil Gramm,
Orrin Hatch,
Jesse Helms,
Larry Pressler,
Robert Smith,
Steven Symms | David Durenberger,
Donald Riegle |