Judge Keller, Ackworth, was appointed to the bench in 1986. Born in Dallas Center, Iowa, he went to Iowa State University and the University of Utah. He attended law school at Drake University and graduated in 1963. Judge Keller then served with the United States Air Force Reserve, as judge advocate, and practiced law in Orlando, Florida, and Dallas Center, Iowa, before his appointment. Judge Keller is a member of the Iowa State Bar Association and the Iowa Judges Association. He was awarded the Legion of Merit by the U.S. Air Force Reserve in 1994. He has three children.