Mr. James R. Layton
Tueth Keeney Cooper Mohan Jackstadt PC
34 North Meramec Avenue, Suite 600
Suite 600
St. Louis, MO 63105

Phone    (314) 880-3600
Fax         (573) 751-0774

Type of Case: Civil and Criminal
Admitted to practice:
Supreme Court
7th Circuit, 8th Circuit, 9th Circuit, D.C., Federal

From 1994 until January 2017, James R. Layton was the State of Missouri’s principal appellate lawyer. As Solicitor General, he supervised cases in all appellate courts. His personal appellate caseload was focused primarily on state and federal constitutional issues, state taxation, and administrative law. In addition, he handled trial court matters--principally those dealing with constitutional questions.

Jim has argued cases in appellate courts well over 200 times, including nearly 100 times before the Missouri Supreme Court and four before the United States Supreme Court. Mr. Layton is a magna cum laude graduate of Brigham Young University and its J. Reuben Clark law school. Before starting law school, Mr. Layton served as legislative assistant for U.S. Congressman James D. Santini (D-Nev.). He began his legal career as a law clerk to the late U.S. Court of Appeals for the Federal Circuit Judge Daniel M. Friedman. After working as a litigation association at Vinson & Elkins in Washington, D.C., Mr. Layton became an Assistant United States Attorney in the District of Columbia. He left that office in 1994 to become the first full-time, supervisory civil appellate lawyer in the Missouri Attorney General’s Office. A former member of the George Washington American Inn of Court in Washington, D.C., Mr. Layton helped organize and served as President of the Elwood L. Thomas American Inn of Court from its inception in 2007 until 2011. He has served as Chair of the American Bar Association’s Council of Appellate Lawyers and helped organize and served as President of the Bar Association of the U.S. Court of Appeals for the Eighth Circuit. In 2010, Mr. Layton was inducted as a Fellow of the American Academy of Appellate Lawyers and was given the Missouri Bar Foundation’s Spurgeon Smithson Award for having “rendered outstanding service toward the increase and diffusion of justice among men.” In 2011, he was honored as the “Distinguished Non-Alumnus” by the University of Missouri Law School, where he has taught as an adjunct professor since 1996. And in 2012, he was honored as an influential appellate advocate by Missouri Lawyers Weekly. Mr. Layton is a member of the Church of Jesus Christ of Latter-day Saints. He has also been active in various community organizations, most notably the Boy Scouts of America. He and his wife live in St. Louis, Missouri. They are the parents of three children.


  • JD 1982 J. Reuben Clark Law School, Brigham Young University BS 1979, Brigham Young University

Honors and Awards:

  • Spurgeon Smithson Award, The Missouri Bar, 2010 Distinguished Non-alumnus, University of Missouri Law School, 2011 Influential Appellate Advocate, Missouri Lawyers Weekly, 2012

Nature of Firm's Practice:

  • In addition to appellate work, Tueth Keeney has extensive experience in labor and employment, immigration, education, commercial litigation, government representation, and other areas.

Other Information:

  • Past Chair, Council of Appellate Lawyers, American Bar Association Past President, Bar Ass'n of the U.S. Court of Appeals for the Eighth Circuit Past President, Elwood L. Thomas American Inn of Court