TWA Leadership

TWA Officers

TWA Executive Committee

TWA Board of Directors

TWA Regional Leadership

TWA Statewide Committees


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TWA Officers

President Marcus T. Barrett IV

Marcus T. Barrett IV serves as President of the Texas Wildlife Association.

Marcus (“Marko”) was first elected President of the organization on July 10, 2015. As President, Marko is the Principal Executive Officer of the Association and, in general, supervises and controls all of the business and affairs of the Association.

Marko was first elected Treasurer of the organization on July 8, 2011, and he was re-elected to a second one-year term on June 29, 2012. He then served as Vice President of TWA from July 12, 2013.

Marko was born and raised in San Antonio, Texas. He graduated from Trinity University in 2001 with a BS in Geosciences. He serves as a Geologist for Barrett Brothers Oil & Gas.

Marko had instilled in him a passion for wildlife from an early age. He has had first-hand experience managing wildlife and habitat from the Trans-Pecos to South Texas. Currently, he is part owner and wildlife manager of Las Raices Ranch in Webb County and the Lago Escondido Ranch in Medina County. 

Recently, he has been involved in organizing and hosting hunts for Wounded Warriors through the Center for the Intrepid and hosting youth outdoor days for urban kids through the G.A.M.E.R. program (Giving Americans Motivational Education for the Real World). He has also hosted and guided for Texas Youth Hunting Program hunts on Las Raices Ranch. 

He currently serves as a member of the TWA’s Deer Management Committee, and he served as the TWA Auction and Convention Committee co-chair in 2010 and 2011.

Marko is a member of Safari Club International, National Rifle Association, Shikar Safari Club, International Game Fish Association, Coastal Conservation Association, and he is Life Member of the Texas Wildlife Association. He is an official measurer of both the Boone and Crockett club and the Texas Big Game Awards. 

Marko and his wife Sheila live in San Antonio.


Vice President J. David Anderson

J. David Anderson serves as Vice President of the Texas Wildlife Association.

J. David was first elected Vice President of the organization on July 10, 2015. As Vice President, J. David acts as a liaison resource between Region and Urban Team leadership and the TWA Officers.

J. David previously served the organization as Treasurer from July 12, 2013, to July 10, 2015. He also served as Chairman of the TWA White-tailed Deer Management Committee, Chairman of TWA Team Houston, and he has served on the Executive Committee for the past eight years.

J. David was born in Kansas City, Kansas, before moving to Texas at two months of age. He is a graduate of Lamar University in Beaumont.

J. David is a Life Member of the Texas Wildlife Association. He joined TWA in 1993. He is also a member of St. Luke’s Methodist Church Board of Stewards in Houston and serves as the CEO of Andon Specialties Inc. and Andon Energy Services LLC in Houston.

J. David and his wife Brenda live in Houston. They have two daughters, one son, and seven grandchildren.


Second Vice President for Programs Dr. Louis Harveson

Dr. Louis Harveson serves as Second Vice President for Programs of the Texas Wildlife Association.

Dr. Harveson was first elected Second Vice President for Programs on July 12, 2013. 

As Second Vice President for Programs, Dr. Harveson serves as an Officer contact and representative for all organizational education program efforts, and he serves as an organizational liaison and resource in matters relating to wildlife and/or natural resource research at the university and college level and with state and federal agencies.

Dr. Harveson is the Dan Allen Hughes, Jr., Endowed Director of the Borderlands Research Institute for Natural Resource Management at Sul Ross State University in Alpine, Texas. The Borderlands Research Institute focuses on assisting landowners and managers of west Texas in managing the natural resources they have been entrusted with. 

Dr. Harveson is a Professor of Wildlife Management at the university. Dr. Harveson’s specialization is Big Game Ecology and Management, Predator-Prey Dynamics, and Upland Gamebird Ecology.

Dr. Harveson is a 4th generation Texan and is a native of Fort Worth. He is a graduate of Texas Tech University (B.S., Wildlife Management, 1991), Texas A&M University-Kingsville (M.S., Range and Wildlife Management, 1995), and Texas A&M University (Ph.D., Wildlife Science, 1997).

Dr. Harveson is a Certified Wildlife Biologist and is a member of The Wildlife Society, Texas Chapter of The Wildlife Society, and various conservation and hunting organizations

Dr. Harveson and his wife Patricia live in Alpine with their daughter Katie and son Jake.

Treasurer Tom Vandivier

Tom Vandivier serves as Treasurer of TWA elected on July 10, 2015. 

As Treasurer, Tom serves as Chairman of the TWA Finance Committee and oversees the maintenance of records of fiscal business of the Association. 

He lives in Austin, Texas with his wife Sonja.  Their children are Laura Sherrod and husband Greg, Jessica Camp and husband Brandon.

Tom received his BBA degree in business and economics from Southwestern University in 1976, and his Law degree (JD) from the University of Houston in 1978.  He currently practices law in Austin in the areas of real estate and probate.

His ranch, the Llano Springs Ranch, is located in Junction, Texas. The ranch was awarded the Leopold Conservation Award in 2008.

Tom has been a TWA Member since 1995, a Member and Past Chairman of the Deer Management Committee, served on the Texas Youth Hunting Program Advisory Board, TWA Executive Committee, and TPWD’s White-tailed Deer Advisory Board and TPWD’s MLDP Working Group.



TWA Executive Committee

The Texas Wildlife Association Executive Committee is appointed by the President. All members of the Executive Committee must be Voting Members of the Association. 

The Executive Committee governs all actions and sets all policy of the Association and may exercise all of the powers of the Board of Directors in the interim period between meetings of the Board of Directors. The Executive Committee has full power over all business as conducted by the Officers of the Association, and the Officers are responsible to this Committee. 

Members of the current Executive Committee are:

J. David Anderson, Houston
Terry Anderson, Martinsville
Marcus Barrett IV, San Antonio
Rene Barrientos, San Antonio
Marc Bartoskewitz, Ranger
Warren Bluntzer, Lometa
Christine Buford, Harlingen
Linda Campbell, Kyle
Ruben Cantu, San Angelo
E. A. "Bud" Christy III, San Antonio
Deborah Clark, Henrietta
Vannie Collins, San Antonio
Charles Davidson, San Antonio
David Delaney, Kingsville
D. E. "Doug" DuBois, Jr., Austin
Bill Eikenhorst, Brenham
Joseph Fitzsimons, San Antonio
Louis Harveson, Alpine
George "Timo" Hixon, San Antonio
Lee Hoffpauir, Lampasas
Peter John Holt, San Antonio
William Jones III, Corpus Christi
Wallace Klussmann, Fredericksburg
William Knolle, Austin
David Langford, Comfort
Jonathan Letz, Comfort
Mark Matthews, Hondo
Dan McBride, Burnet
Wallace Rogers IV, San Antonio
Jenny Sanders, Freer
Greg Simons, San Angelo
Don Steinbach, Burton
A. M. "Mac" Stringfellow, San Antonio
David Synatzske, Sandia
Tom Vandivier, Austin
David Watts, Boerne
Larry Weishuhn, Uvalde
Neal Wilkins, San Antonio
William "Carl" Young, Georgetown

TWA Board of Directors

The affairs of the Texas Wildlife Association are managed by the Board of Directors. Only Voting Members of the Association serve as Directors. Each of the eight TWA regions has at least five representatives on the Board of Directors. The number of Directors is set by the Executive Committee. Each Director serves a term of three years, and there is not a limit on the number of terms a Director may serve.

Directors are divided into two categories, Active Directors and Directors Emeritus. Directors Emeritus are nominated by the sitting Executive Committee and are granted such status by the Executive Committee.

Directors Emeritus have the same rights and privileges, but not the obligations, of Active Directors. Directors Emeritus are required to be at least Active Members in good standing and have shown outstanding service to the organization, above and beyond the call of duty. To qualify for Director Emeritus status, a Director must have either served as an Officer of the organization for eight years, or served as a director of the organization for nine years, or have been a founding member of the organization.

Directors Emeritus

Hefner Appling Jr., El Campo
Richard Bennett, Batesville
M. McLean Bowman, Carrizo Springs (Past President)
Robert Bracken, Tilden
Richard Butler, Karnes City (Past President)
Charles M. Davidson, San Antonio (Past President)
Ed Dutch, Marble Falls
Derry T. Gardner, San Antonio (Past President)
Luke C. Kellogg, Amarillo (Past President)
Steve C. Lewis, San Antonio (Past President)
Gary Machen, Pearsall (TWA Co-Founder)
Paul E. McSween III, San Antonio (Past President)
Murphy E. Ray Jr., Somerset (TWA Co-Founder)
Wallace "Happy" Rogers III, Carrizo Springs (Past President)
Charles Schreiner IV, Salado
Jimmie V. Thurmond III, San Antonio (Past President)
Larry L. Weishuhn, Uvalde (TWA Co-Founder)

Honorary Directors Emeritus

James L. "Jaimie" Hayne Jr., San Antonio (Past President)
A.C. "Dick" Jones IV, Corpus Christi

Directors Terms Expiring 2016

Andy Allen, Boerne
Ernie Angelo, Midland
Terry Anderson, Martinsville
Hon. Katharine Armstrong Love, Austin
Bradford Barnes, Fort Worth
Rene Barrientos, San Antonio
Susi Bell, Ingram
Andrew Biar, Houston
Mark E. Bivins, Amarillo
Warren Bluntzer, Lometa
Lamar Brown, Austin
Dr. Larry Butler, Weatherford
E.A. "Bud" Christy, San Antonio
Hon. Susan Combs, Austin
Alan Curry, San Angelo
Ernie Davis, Cotulla
Doug DuBois Jr., Austin
Edward Farmer, Austin
Milton S. Greeson Jr., Victoria
Cecario "CG" Guererro, Houston
Jeffrey Gunnels, Montalba
Jay Harpole, Boerne
Dr. Louis Harveson
Elliot G. Hayne, San Antonio
Brian Hays, Gatesville
Dr. Dave Hewitt, Kingsville
Dr. Billy Higginbotham, Overton
Richard S. Hill, Austin
Timo Hixon, San Antonio
W.H. Hoffmann Jr., Eastland
Lee Hoffpauir, Lampasas
Debbe Hudman, Albany
Parker Johnson, Houston
W.W. “Whit” Jones III, Hebbronville
Buddy Jordan, Bulverde
Hon. Kyle Kacal, College Station
Wallace Klussmann, Fredericksburg
Tucker Knight, Houston
Jonathan Letz, Comfort
Rob Lindsey, Goldthwaite
Keith Martin, San Antonio
Walter "Monty" Martin, Flower Mound
Mark Matthews, Hondo
Kent Mills, Hermleigh
Dr. Dan McBride, Burnet
Heath McBride, Brady
Dr. Robert McFarlane, Tennessee Colony
Daniel A. Pedrotti, Corpus Christi
Larry Pierce, Brenham
Foster “Sims” Price, Sterling City
Sue Price, Blooming Grove
Nelson Harwood Puett, Austin
Russell Rehmann, Austin
Dr. Dale Rollins, San Angelo
Joe Ruple, Charlotte
Jenny Sanders, Freer
Jackie Serbus, Bedford
Kevin Smithhart, Lufkin
Misty L. Sumner, Kent
R.H. "Butch" Thompson, Kingsville
Tamara Trail, Albany
Karla Welch, Hebbronville
Dr. Neal Wilkins, Corpus Christi
William B. Wright Jr., Cisco
Randy Wyatt, San Antonio
William "Carl" Young, Georgetown
Max Yzaguirre, Austin

Directors Terms Expiring 2017

Curtis Anderson, Houston
J. David Anderson, Houston
Thomas Arnim , San Antonio
Ty Bartoskewitz, Breckenridge
Tom Beard, Alpine
James  Blackwell, Littlefield
R. Warren Blesh, Goldthwaite
Randy Cadwallader V, San Antonio
Linda Campbell, Austin
Jim Cathey, College Station
Vannie Collins, San Antonio
Cary Dietzmann, Cat Spring
Robert Dullnig, San Antonio
Justin Feild, St Cloud, FL
Joseph Fitzsimons, San Antonio
Dan Flournoy, Houston
Joel Glass, Laredo
Steven Harker, Houston
Jackie Harker, Houston
Stephen  Hill, Dallas
William  Howell, College Station
Randall Hudson, Fort Worth
Ronald  Johnson, Missouri City
Mason King, Ft. Worth
Ricardo  Longoria, San Antonio
Steve Mafrige , Tilden
Michael McCulloch D.V.M. , Midland
Bruce McNabb, Fair Oaks Ranch
Jason Parrish, Austin
Scott Petty, San Antonio
Bryan Pickens, Dallas
Randy Rehmann, Austin
Mike Reynolds, Austin
Homer Saye, Cypress
Carroll Schubert, San Antonio
Greg Simons, San Angelo
Don Steinbach, Burton
David Synatzske , Sandia
Jay Timmins, Brownwood
Peggy Van Cleve, Carrizo Springs
Tom Vandivier, Austin
Bryan Wagner, Fort Worth
Bill Walker, Seguin
Clayton Wolter, Boerne

Directors Terms Expiring 2018

Connard Barker, Montgomery
Marcus Barrett IV, San Antonio
James Barrow, San Antonio
Kenneth Bell, Spring Branch
Albert Biedenharn, San Antonio
Al Bisbey, George West
Christine Buford, Harlingen
Dr. Paul Burns, Austin
Ruben Cantu, San Angelo
William Carrington, San Antonio
Chuck Cashdollar, Spring
Ken Cearley, Happy
Deborah Clark, Henrietta
Koy Coffer, Kerrville
Vannie Collins, San Antonio
Kevin Comiskey, Katy
Mark Connally, Austin
Keith Crawford, Austin
Dave DeLaney, Kingsville
Bob Dittmar, Kerrville
Steve Dutton, San Antonio
Keith Ferrell, Lake McQueeny
Patrick Fowlkes, Marfa
Donnie Frels, Hunt
Chaz Glace, Round Rock
Chuck Greco, Houston
Jeff Hanselka, La Vernia
Rebecca Heidelberg, Midland
Rod Hench, Hermleigh
Cal Hendrick, Odessa
Roger Hill III, San Antonio
Peter John Holt, San Antonio
James Hurst, Barnhart
Amanda Hurst, El Campo
Karl Kinsel, San Antonio
Dan Kinsel III, Cotulla
William Knolle, Austin
Bart Koontz, San Antonio
Keith Lake, Bandera
Ben Love, Marathon
Russell Marshall, Victoria
Mike Martinez, Fresno
Con Mims, Uvalde
Rick Nauert, Austin
William Osborn III, San Antonio
John Park, San Antonio
Jay Robertson, San Antonio
Wallace Rogers, San Antonio
William Russell, San Antonio
Michael Sasser, Beeville
A. M. "Mac" Stringfellow, San Antonio
Jim Thompson, Austin
Arthur Uhl III, San Antonio
Bob  Warren, San Antonio
David Watts, Houston
Rex Webb, Austin



TWA Regional Leadership

In order to maintain effective representation in the widely-dispersed and ecologically-unique regions of the state, eight regional committees shall serve to keep the President and Executive Committee informed. 

The regional committees shall be comprised of a Chairman, a Vice Chairman or Co-Chairman. The Board of Directors or a majority vote of the Officers shall appoint the Chairman and Vice Chairman of each committee. Those chairs, in consultation with the Officers, shall appoint the other members of the committee. Committee members are encouraged to be Voting members of the Association, although non-Voting members of the Association may serve on a regional committee due to their respective efforts and interests as an Associate, Student, or Youth member.

Click here for a listing of current TWA Regional Leadership.


TWA Statewide Committees

Conservation Legacy Committee

The TWA Conservation Legacy Advisory Committee (CLAC) is formed to provide advice and recommendations to the TWA Executive Committee on the range of issues and topics necessary for implementing high-impact education programs. 

Staff Contact: David Yeates (dyeates@texas-wildlife.org)


Desert Big Game Committee

The TWA Desert Big Game Committee is formed to provide advice and recommendations to the TWA Executive Committee on the range of legislative, regulatory, and non-regulatory issues and topics involving mule deer, pronghorn antelope, and bighorn sheep management in Texas.  

Staff Contact: David Yeates (dyeates@texas-wildlife.org)


Finance Committee

The TWA Finance Committee is formed to provide advice and recommendations to the TWA Executive Committee on the range of issues and topics necessary to achieve the organization’s financial goals. 

Staff Contact: David Yeates (dyeates@texas-wildlife.org)


Hunting Heritage Committee

The TWA Hunting Heritage Advisory Committee (HHAC) is formed to provide advice and recommendations to the TWA Executive Committee on the range of issues and topics necessary to sustain and promote our hunting heritage, promote ethical, safe hunting, educate hunters and the public on management of our native ecosystems, encourage involvement and identify accessibility in hunting, and foster private lands stewardship through education. The future of hunting is dependent on the recruitment of next-generation hunters, hunter access, and maintaining and increasing hunting opportunities for hunters.

 Staff Contact: David Yeates (dyeates@texas-wildlife.org)


Legislative Committee

The TWA Legislative Committee is formed to provide advice and recommendations to the TWA Executive Committee on the range of issues and topics necessary to achieve the organization’s public policy goals (both legislative and regulatory) at the state and federal levels. 

Staff Contact: Daivid Yeates (dyeates@texas-wildlife.org)


Membership Committee

The TWA Membership Committee is formed to provide advice and recommendations to the TWA Executive Committee on the issues and topics necessary to achieve the organization’s membership and regional development goals.

Staff Contact: Nicole Greaney (ngreaney@texas-wildlife.org)


TYHP Advisory Committee

The TWA TYHP Advisory Committee (TYHPAC) is formed to collaboratively work with the TWA Executive Committee to oversee the direction of the Texas Youth Hunting Program (including, without limitation, the administration and financing of the youth hunting program, or similar mutually agreed programs).  TYHP is a co-sponsored initiative of the Texas Parks and Wildlife Department, Texas Wildlife Association, and Texas Wildlife Association Foundation, Inc. that is established as a program to consolidate youth hunting outreach and information in Texas.   

Staff Contact: Chris Mitchell (cmitchell@texas-wildlife.org)


White-tailed Deer Management Committee

The TWA White-tailed Deer Management Committee (WTDMC) is formed to provide advice and recommendations to the TWA Executive Committee on the range of legislative, regulatory, and non-regulatory issues and topics involving White-tailed Deer management in Texas.  

Staff Contact: David Yeates (dyeates@texas-wildlife.org)


Women of the Land Committee

The TWA Women of the Land (WOTL) Advisory Committee is formed to provide advice and recommendations to the TWA Conservation Legacy Staff, Conservation Legacy Advisory Committee and the TWA Executive Committee on a range of issues and topics necessary to support a land ethic that achieves natural resource literacy through the WOTL program and other outreach programs/activities relevant to the mission of WOTL.

Staff Contact: Clint Faas (cfaas@texas-wildlife.org)

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