St. Louis Area Christian Attorney

Jim Knappenberger has had a law office in Clayton for over 45 years, 19 of them in the office of noted criminal defense attorney Charles M. Shaw.

Jim Knappenberger’s family and roots are in the Midwest. Born in Kansas and raised in Nebraska, he graduated Phi Beta Kappa from the University of Nebraska-Lincoln, then graduated from Washington University in St. Louis Law School. He serves on the board of Mission to Mamertine, a 501(c)(3) organization dedicated working with local churches to bring the gospel to prison inmates one-on-one. He has been a member for many years of the Christian Legal Society-St. Louis chapter, and with Legacy Builders (formerly CBMC in St. Louis), reaching out to men in the local business community to help them become the men God wants them to be. He, his wife and their cat live in central St. Louis County. He attends church at St. Paul’s Evangelical Free Church. His daughter and son in law are missionaries in Mozambique, Africa.

He received Christ as his personal savior many years ago in College. His goal is to shape his practice and life according to God’s two great commandments: “You shall love the Lord your God with all your heart and with all your soul and with all your mind. This is the great and first commandment. And a second is like it: You shall love your neighbor as yourself” (Matthew 22:37-39). He believes in good client communication (as a client you will have his cell number), being a good listener, and in giving sound, hands-on attention to every client and every case, both in and out of the court room. Committed to building personal relationships, attorney Jim Knappenberger takes the time to fully understand your legal needs and listens to your concerns. He understands that your unique circumstances play an important role in developing the appropriate legal advice and course of action. He practices in the greater Eastern Missouri area including St. Louis City, St. Louis County, St. Charles County, Franklin County, Jefferson County, Warren County, and Lincoln County.


If you have a legal question or need the services of an experienced attorney, or even if you just have questions about what it means to commit your life to Christ, please give him a call.


  • University of Nebraska-Lincoln
  • Washington University Law School


  • American Bar Association (ABA)
  • Missouri Bar Association (MoBar)
  • Bar Association of Metropolitan St. Louis (BAMSL)
  • Christian Legal Society


  • All Missouri State Courts
  • Federal Courts