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Jonathon Conrad Clark

also known as Jon Clark, John Clark

About me

Jon is originally from the Fort Worth area. He graduated from Texas Tech University’s Rawls College of Business and then attended the Texas Tech School of Law.  In law school Jon participated in several practice court activities, reaching the final rounds and winning awards in several. He also served as an editor on two journals, the Texas Tech Law Review and the Estate Planning & Community Property Journal. In his third year of law school, Jon had the opportunity to argue a real case before one of the United States Circuit Courts, the level of court just before the U.S. Supreme Court. 

Initially, Jon worked as a law clerk with the firm and then went on to work as an attorney in the firm’s litigation department for three years. After a two and half year absence in which he had his own law firm and relocated to Austin, he rejoined the firm to work with Kevin Glasheen in our Austin office. 

Jon has focused his entire career on representing people, and their families, who have suffered catastrophic injuries or death. He prides himself on his ability to understand and explain to juries the true harms caused by injuries and the ways in which an injury can drastically alter someone’s life. 

Over the years, Jon has represented people in serious workplace injuries, commercial trucking cases, significant motor vehicle and motorcycle crashes, pipeline explosions, premises liability claims, pedestrian accidents, and various other situations. His aggressive style has led to successful outcomes through settlement and trial for hundreds of clients.  

Jon has been named to the Nation’s Top One Percent by the National Association of Distinguished Counsel, which includes less than 1% of practicing attorneys in the United States. He has also been selected for inclusion in the Top 40 Under 40 of Plaintiff's Lawyers by the National Trial Lawyers Association. In addition to his legal practice Jon is active with the Texas Trial Lawyers Association, an organization dedicated to protecting the rights of the people to seek justice in the Texas court system. 

Jon is licensed to practice in all state courts in Texas, New Mexico, and Colorado. He is also admitted to practice in the United States District Courts for the Northern District of Texas and the United States District Courts for the District of New Mexico.


Photos and videos

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Contact info

Glasheen, Valles & Inderman

1220 Colorado St
STE 320
Austin, TX, 78701

Glasheen, Valles & Inderman

1101 Montana Ave
El Paso, TX, 79902

Glasheen, Valles & Inderman

422 N Grant Ave
Odessa, TX, 79761

Glasheen, Valles & Inderman

1302 Texas Ave
Lubbock, TX, 79401

Glasheen, Valles & Inderman

300 Central Ave SW
STE 1000E
Albuquerque, NM, 87102


Practice areas


  1. Trucking Accident: 40%
  2. Wrongful Death: 40%
  3. Car Accident: 10%
  4. Brain Injury: 10%



Contingent (40%), Free consultation (60 minutes)

Attorney endorsements

25 total 

Are you an attorney? Endorse this lawyer

  • Tina Cheryl Torres

    If you have a personal injury issue, the first thing you should be concerned about is whether your lawyer truly empathizes with your situation. The second thing you should be concerned about is whether your lawyer knows the law so that he/she can best advocate on your behalf. The third thing you should be concerned about is whether your lawyer will be likable to a jury (because if your case is tried before a jury, whether or not the jury likes your lawyer can be devastating). Being a former Judge, I am a firm believer in Jon Clark and what he brings to the practice of law. He is a compassionate and zealous advocate for his clients; he knows the law inside and out; and he is one likable gentleman. Anyone needing Mr. Clark's services should know he/she is in good hands.


    Tina Torres Divorce and separation Attorney
    Relationship: Fellow lawyer in community

  • Noe Guillen Valles

    I endorse this lawyer. Jon is one of the best young PI lawyers around. Jon is a true advocate for his clients.


    Noe Valles Personal injury Attorney
    Relationship: Worked together on matter


NMAuthorized to practice law201008/23/2013
TXEligible To Practice In Texas 200907/16/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top 40 Under 40 - Civil PlaintiffNational Trial Lawyers Association2016
Nation's Top One PercentNational Association of Distinguished Counsel2015
Top Attorneys of North AmericaHeritage Who's Who Directories2015
Distinguished ServiceTexas Tech Law Review2009
Distinguished ServiceEstate Planning Journal2009
Distinguished ServiceTexas Tech Law Review2008
Top AdvocateMack Kidd Administrative Moot Court2007
Best BriefMack Kidd Administrative Moot Court2007
Work experience
TitleCompany nameDuration
AttorneyGlasheen, Valles & Inderman, LLP2015 - Present
AttorneyZinda & Davis, PLLC2013 - 2015
PartnerGuardiola & Clark, P.C.2012 - 2013
AttorneyGlasheen, Valles, Inderman & De Hoyos, LLP2009 - 2012
Law ClerkHonorable Sam Medina - 237th District Court2008 - 2009
Law ClerkLaw Office of Wes Dauphinot, PC2007 - 2007
Association namePosition nameDuration
Texas Trial Lawyers Association AdvocatesBoard of Directors2015 - Present
National Association of Distinguished CounselNation's Top One Percent2014 - Present
American Association for JusticeMember2014 - Present
Capital Area Trial Lawyers AssociationMember2014 - Present
State Bar of New MexicoMember2010 - Present
State Bar of TexasMember2009 - Present
Texas Trial Lawyers AssociationMember2008 - Present
West Texas Epilepsy FoundationBoard of Directors2012 - 2013
South Plains Trial LawyersMember2009 - 2014
Texas Trial Lawyers AssociationPublicity Officer2008 - 2009
Appellate Advocacy CommiteeVice Chair2007 - 2009
Legal cases
Case nameOutcome
18 Wheeler CaseRecovered a large confidential settlement for policy limits for our client within 6 months
Gas Explosion CaseCollected a large confidential settlement on behalf of our client.
Serious Austin CrashSettled for policy limits
See all legal cases 
Publication nameTitleDate
62 Consumer Fin. L.Q.Dude Where's My Car?: How the Proposed Uniform Certificate of Title Act Addresses Conflicts Between the Texas Certificate of Title Act and the Uniform Commercial Code2009
School nameMajorDegreeGraduated
Texas Tech University School of LawN/ACertified Mediator2009
Texas Tech University School of LawLawDoctor of Jurisprudence2009
Texas Tech UniversityBusinessBBA - Bachelor of Business Administration2006
Speaking engagements
Conference nameTitleDate
TTLA & TADC El Paso Chapter Joint CLEProtective Orders2015