Judge Miller is a native Houstonian and was a member of the third graduating class of Strake Jesuit College Preparatory in Houston, Texas. He attended the United States Merchant Marine Academy from 1967 to 1969. He received a B.A. in 1974 and a J.D. in 1978 from the University of Houston, where he was a member of the Order of the Barons. While attending undergraduate and law school, Judge Miller served as a Houston police officer. He was admitted in 1978 to practice law in Texas. He worked at the law firm of Fulbright and Jaworski L.L.P. from 1978 until 2006. He was appointed as a United States District Judge in 2006 by President George W. Bush.
Judge Miller is a member of the Houston Bar Association, the State Bar of Texas, the Maritime Law Association of the United States, and the Houston Maritime Arbitrators Association. He also has served as a vice chair of the Admiralty and Maritime Law Committee of the Tort and Insurance Practice Section of the ABA. He is a life fellow of the Houston Bar Foundation and a fellow of the Texas Bar Foundation. He is a member of the Houston Marine Insurance Seminar Executive Committee and has served on the planning committees for seminars on Admiralty and Maritime Law sponsored by the State Bar of Texas, the University of Texas, and South Texas College of Law Houston. He is a frequent speaker on practicing in federal court and ethics and professionalism. Judge Miller was listed in the 2001-2006 editions of "The Best Lawyers in America" as one of the top admiralty lawyers in the country. He was also listed in the 2003 edition of "Euro Money's Guide to the World's Leading Maritime Lawyers" and chosen as a "Texas Super Lawyer."
Judge Miller is a judicial liaison to the Federal Bar Association, Southern District of Texas Chapter. He is a member of the Board of the Insurance Council of the State Bar of Texas, and he was also Vice President and Counselor to the Executive Committee of the Garland R. Walker American Inn of Court from 2010 to 2014.
Judge Miller served as the chair of the Harris County Mental Health/Mental Retardation Authority and as a member of the Texas Board of Mental Health and Mental Retardation. He is a member of the Advisory Board of the Cavalla Historical Foundation, USS CAVALLA (SS 244), and he is an associate member of the U.S. Merchant Marine Academy Alumni Association and Foundation. He is also an Honorary Submariner, having qualified aboard the USS TEXAS (SSN 775) on September 5, 2014. Judge Miller received the 2015 President's Award from the University of Houston Law Center Alumni Association.