Our Team



A native of Corpus Christi, Jeff brings an extensive background in nonprofit leadership and philanthropy to his new role, reinforcing Trinity Oaks Outdoors’ commitment to expanding its positive influence in the lives of wounded U.S. veterans, first responders, children with life-threatening illnesses, and their family members.

Jeff graduated from Texas A&M University in 1983 and embarked on a successful career path, initially joining his family’s industrial construction business. Over the years, he held key leadership positions, notably serving as president of Sizemore Environmental Group and later
leading Sizemore Telecom Services as president from 1997 to 2002.  Jeff’s diverse professional experience also encompasses consultancy in the industrial construction sector and representing a prominent worldwide shotgun brand as the U.S. Sales Representative.

His dedication to philanthropy and community service has left an indelible mark on the organizations he has served. He has served on the boards of prestigious organizations, such as Big Brothers Big Sisters, Boy Scouts of America, and Ducks Unlimited. Jeff has volunteered for numerous causes, taking on significant roles like president of the local Texas Brush Country Safari Club International (SCI) Chapter and leading critical fundraising initiatives for the Women’s Shelter of South Texas for a new facility. Currently, Jeff serves as the vice-chairman of Trinity Oaks Outdoors.

His passion for skeet shooting is notable, reflected in his role as a four-time Men’s US International Skeet Team Member, six-time Junior Men’s International US Champion, and nine-time All-American Skeet Team member, showcasing his dedication to excellence both within and outside the philanthropic sphere.  Most important though, is his passion for impacting the lives of others.

In his personal life, Jeff is happily married to his wife, Carolina, and together they find joy in hunting, fishing, and traveling, cherishing outdoor experiences together.

our team