1974–75: Pamela Ebert Flattau, PhD, with the Senate Committee on Labor and Public Welfare Subcommittee on Children and Youth
1975–76: Lawrence Froman, PhD, with the Senate Committee on Labor and Public Welfare
1976–77: Sara Schurr, PhD, with Rep. David Obey (D-Wis.)
1977–78: Ralph Cooper, PhD, with Rep. Doug Walgren (D-Pa.), and Sen. H. John Heinz (R-Pa.)
1978–79: Daniel Koretz, PhD, with the Congressional Budget Office
1979–80: Nancy Morency Curran, PhD, with Rep. Robert Drinan (D-Mass.)
1980–81: Robinsue Frohboese, PhD, JD, with Sen. Edward Kennedy (D-Mass.)
1981–82: Lyn Aubrecht, PhD, with Rep. Austin J. Murphy (D-Pa.)
1982–83: Judith Meyers, PhD, with Rep. David Obey (D-Wis.); David Stonner, PhD, with Rep. Claudine Schneider (R-R.I.)
1983–84: James Brennan, PhD, with Rep. Edward J. Markey (D-Mass.); Diana Zuckerman, PhD, with Rep. Pat Williams (D-Mont.)
1984-85: Bohne Silber, PhD, with Sen. Albert Gore Jr. (D-Tenn.)
1985–86: Elaine Anderson, PhD, with Sen. Paul Simon (D-Ill.); Ruth Ann Parvin, PhD, with Sen. Ted Stevens (R-Alaska) and Sen. Paula Hawkins (R-Fla.)
1986–87: J. Thomas Puglisi, PhD, with the House Select Committee on Aging; Trudy Vincent, PhD, with Sen. Bill Bradley (D-N.J.)
1987–88: Andrea Solarz, PhD, with Sen. Tom Harkin (D-Iowa); Krista Stewart, PhD, with the Senate Committee on Labor and Human Resources.
1988–89: May Kennedy, PhD, MPH, with the Senate Committee on Labor and Human Resources; Wendy Pachter, PhD, JD, with Sen. Bill Bradley (D-N.J.)
1989–90: Mitchell Handelsman, PhD, with Rep. Sander Levin (D-Mich.); Denis Nissim-Sabat, PhD, with Sen. Paul Simon (D-Ill.)
1990–91: Jo Ann Lee, PhD, with the Senate Committee on Labor and Human Resources Subcommittee on Aging; Katherine Nordal, PhD, with Rep. Mike Espy (D-Miss.); Danny Wedding, PhD, with the House Committee on Government Operations
1991–92: Joseph Baum, PhD, with Sen. Albert Gore Jr. (D-Tenn.); Allison Rosenberg, PhD, with the Senate Appropriations Committee, Subcommittee on Labor, Health, and Human Services, Education and Related Agencies; Melanie Ann Taylor, PhD, with the Senate Committee on Labor and Human Resources
1992–93: Karen Anderson, PhD, with Rep. Jolene Unsoeld (D-Wash.); Evelyn Becker, PhD, with the Senate Committee on Labor and Human Resources, Subcommittee on Children and Families; Debra Dunivin, PhD, with Sen. Daniel Inouye (D-Hawaii); Ernest Lenz, PhD, with Rep. Patsy Mink (D-Hawaii); Annette Rickel, PhD, with Sen. Donald Riegle (D-Mich.)
1993–94: Charles Barone, PhD, with Sen. Paul Simon (D-Ill.); Debra Dunivin, PhD, with Rep. Robert Carr (D-Mich.); Karen Kovacs North, PhD, with Rep. Edward J. Markey (D-Mass.); Brian Smedley, PhD, with Rep. Bobby Scott (D-Va.); Elliot Weiner, PhD, with Sen. Paul Wellstone (D-Minn.), Sen. Barbara Boxer (D-Calif.), Sen. Max Baucus (D-Mont.)
1994–95: Douglas Peddicord, PhD, with Rep. Ben Cardin (D-Md.); Elizabeth Street, EdD, with the House Ways and Means Committee; Janice Williams, PhD, with the Senate Veterans' Affairs Committee
1995–96: Janette Benson, PhD, with Sen. Paul Simon (D-Ill.); Steven Greene, PhD, with Sen. James Jeffords (R-Vt.); Margaret Heldring, PhD, with Sen. Bill Bradley (D-N.J.); David Nickelson, PsyD, JD, with Sen. Kent Conrad (D-N.D.); Allen Omoto, PhD, with Rep. Steve Gunderson (R-Wis.); Michael R. Stevenson, PhD, and Sen. Paul Simon (D-Ill.)
1996–97: Sandra Bishop-Josef, PhD, with the Senate Committee on Labor and Human Resources; Margaret Allen Carter, PhD, with Sen. Thad Cochran (R-Miss.); Daniel Dodgen, PhD, with the House Committee on Education and the Workforce; Sara Goldsmith, PhD, with Rep. Chaka Fattah (D-Pa); Kim Hamlett-Berry, PhD, with the Senate Veterans' Affairs Committee; Carl Settles, PhD, with Sen. Kay Bailey Hutchison (R-Texas)
1997–98: Caryn Blitz, PhD, with the Senate Committee on Labor and Human Resources Subcommittee on Children and Families; Robin Buhrke, PhD, with Sen. Paul Wellstone (D-Minn.); Paul Eckert, PhD, with Sen. John Breaux (D-La.); Paula Skedsvold, PhD, with Rep. Nancy Pelosi (D-Calif.) and Rep. John Lewis (D-Ga.); Rena Subotnik, PhD, with Sen. Jeff Bingaman (D-N.M.); Kenneth Whang, PhD, with the Joint Economic Committee
1998–99: Heather Bullock, PhD, with the Senate Committee on Labor and Human Resources; Jeanine Cogan, PhD, with Rep. Diana DeGette (D-Colo.); Robert Mendoza, PsyD, with Sen. Jeff Bingaman (D-N.M.); David Pittenger, PhD, with the House Committee on Ways and Means; Amy Sussman, PhD, with the Senate Committee on Labor and Human Resources Subcommittee on Children and Families
1999–2000: Natacha Blain, PhD, JD, with the Senate Governmental Affairs Committee Subcommittee on Oversight of Government Management, Restructuring, and the District of Columbia; Kathleen Hogan Bruen, PhD, Senate Committee on Health, Education, Labor, and Pensions Subcommittee on Children and Families; Nina Rossomando, PhD, with Sen. Paul Wellstone (D-Minn.); James Werth Jr., PhD, with Sen. Ron Wyden (D-Ore.)
2000–01: Leonard Bates, PhD, with Rep. Donna Christian-Christiansen (D-V.I.); Ruth Friedman, PhD, with the House Committee on Education and the Workforce; Michelle Keeney, PhD, with the Senate Judiciary Committee; Anna Marie Lucca, PhD, with the House Committee on Ways and Means
2001–02: Tamara Jackson, PhD, with Sen. Jeff Bingaman (D-N.M.); Richard McKeon, PhD, MPH, with Sen. Paul Wellstone (D-Minn.); Rick Ostrander, EdD, with Rep. Pete Stark (D-Calif.); David O'Neil Washington, PhD, MLS, with the Senate Committee on Health, Education, Labor, and Pensions
2002–03: Catherine Cozzarelli, PhD, with Sen. Jeff Bingaman (D-N.M.); Linda Demaine, PhD, with the Senate Committee on the Judiciary; Neil Kirschner, PhD, with the House Committee on Ways and Means; Mischa Thompson, PhD, with Rep. Charles Rangel (D-N.Y.)
2003–04: Daniela Ligiero, PhD, with Sen. Jeff Bingaman (D-N.M.); Diane Marsh, PhD, with Sen. Jeff Bingaman (D-N.M.); Amy Miller, PhD, with Sen. John D. Rockefeller IV (D-W.Va.); Nathan Smith, PhD, with Rep. Janice Schakowsky (D-Ill.) and the Senate Committee on Health, Education, Labor, and Pensions; Patrick Stone, PhD, with the Senate Committee on Veterans Affairs
2004–05: Roberta Downing, PhD, with Senate Committee on Health, Education, Labor, and Pensions; Diane Elmore, PhD, MPH, with Sen. Hillary Clinton (D-N.Y.); Jill Hunter-Williams, PhD, with Rep. Danny K. Davis (D-Ill.); Christopher Loftis, PhD, with the Senate Committee on Health, Education, Labor, and Pensions; Elizabeth Winkelman, PhD, JD, with Sen. Jack Reed (D-R.I.)
2005–06: Paula Domenici, PhD, with Sen. Hillary Clinton (D-N.Y.); Bruce Gilberg, PhD, MPA with Sen. John Rockefeller IV (D-W.Va.); Elizabeth Hoffman, PhD, with the Senate Committee on Health, Education, Labor, and Pensions Subcommittee on Education and Early Childhood Development; Gregory Walton, PhD, with Sen. Hillary Clinton (D-N.Y.)
2006–07: Matthew Shepherd, PhD, with Sen. Gordon Smith (R-Ore.); Joel Szkrybalo, PhD, with Sen. Jeff Bingaman (D-N.M.); Susan Walch, PhD, with Rep. Janice Schakowsky (D-Ill.); Abyssinia Washington, PsyD, with Rep. Patrick Kennedy (D-R.I.)
2007–08: Alfred Amado, PhD, with the House Committee on Education and Labor; Kerry Bolger, PhD, with Rep. Diana DeGette (D-Colo.); Gregory Hinrichsen, PhD, with Sen. Ron Wyden (D-Ore.); Christina Moore, PsyD, with Rep. Patrick Kennedy (D-R.I.); Catherine Zebrowski, PhD, with Sen. Sherrod Brown (D-Ohio)
2008–09: Christa McDermott, PhD, with Sen. Robert Menendez (D-N.J.); Scott Nolen, PhD, JD, with Sen. Olympia Snowe (R-Maine); Mary Polce-Lynch, PhD with Sen. Ron Wyden (D-Ore.)