Thomas M. Keller - born April 20, 1962; Pierre, South Dakota.                  


  • Graduated Milbank High School, Milbank, South Dakota 1980
  • Graduated Duke University, Durham, North Carolina; May 1984
    • B.A. degree in Public Policy Studies  
  • Graduated University of South Dakota School of Law; 1988
    • Juris Doctor                                                                                                      


  • Served as Deputy State's Attorney, Beadle County, Huron, South Dakota; 1988-1992
  • Private Practice, Sioux Falls, South Dakota since 1992, emphasis on family law.
  • Named South Dakota Child Support Referee in 2006, for calculation of child support cases submitted by parents to the State office in Pierre.


  • Committee on Active Participation of Women in Law
  • Solo and Small Firm Committee
  • Family Law Committee (chair 2012-2014)
  • Project Rural Practice
  • Member of the South Dakota Bar Association; Second Circuit Bar Association
  • Former Chair - Sioux Empire Homeless Coalition Board of Directors
  • Sioux Falls Board of Historic Preservation
  • Board of Center for Equality