OUR  STAFF

GREG  &  DEENA THURSTONSON

SENIOR  PASTOR  /  WORSHIP  PASTOR

Greg and Deena Thurstonson pioneered Dominion Church in the Spring of 1996 with a core group of 30 people. Today the church has over 700  congregants and is continuing to grow. After years of meeting in hotels and shopping centers in and around the Clear Lake area, the church now sits on a beautiful building on 30 acres of property in Dickinson, TX. Pastors Greg & Deena have over thirty-five years of ministerial experience. Greg graduated from Southwestern Assemblies of God University with a Bachelor of Science degree in Christian Education. In addition to being a full-time pastor, Greg is a board-certified, Faith-Based Counselor. He travels as a speaker to various conferences, camps, revivals, and retreats. He also serves as the President of the Alumni Association at his alma mater, Southwestern Assemblies of God University. His wife Deena is a gifted worship leader and has been sought out to lead worship at camps and conventions, including the South Texas District Council. They have been married over thirty-five years and have two beautiful daughters, Taylor and Morgan, and two grandchildren, Brooklyn and Colt.

CLINT  DEGROOT

EXECUTIVE  PASTOR

Clint & Casey have served Dominion Church since January of 2002. They started out serving as volunteer youth pastors before coming on board full time staff (as the youth pastors) in June of 2005. Currently they serve in the office of Executive Pastors. Clint earned his BBA in Finance from University of Houston where he also played football. He worked as an accountant for ExxonMobil before coming on full-time at the church. Casey has her Master's degree in Educational Psychology from the University of Houston and is a Licensed Professional Counselor. Currently she works as a Support Counselor at  Clear Springs High School.   They have a true passion to see the local church shine and bring life-change to people's lives. They also have a true passion for traveling, eating lots of food and spending quality time with their 2 kids and 1 dog. 

CODY  ROST

YOUTH  PASTOR

Cody and Lexus Rost serve as the Student Pastors. They met at Houston Master’s Commission, where Cody earned his Bachelor’s Degree in General Ministries and Lexus received her degree in Youth Ministry. Lexus has also graduated with  her degree in Finance from Sam Houston University. They married in 2016 and have served as Student Pastors for 3 years prior to joining the DC Staff in June 2018. Cody and Lexus have a passion for teenagers and their desire is to instill in students a strong foundation in Christ that will continue into the next chapter God has planned for their lives.

TIFFANY  SHELDT

CARE  &  CONNECTIONS  PASTOR

Tiffany serves as our Care & Connections Pastor. Tiffany and her husband Lee have 20 years of extensive full time ministry experience which include 6 years of youth ministry, 4 years as associate Pastors and 10 years as Senior Pastors. Tiffany and Lee met at Southwestern Assemblies of God University and have been married for 26 years. They have 2 sons, Canaan and Noah.

Tiffany has a desire to see the local church functioning in its full potential and purpose. She is passionate about leading our community to Christ, strengthening one another through relationships and growing together through worship and God’s Word. She advocates that we are a family, holding one another up through difficult seasons of life, and celebrating with each other during joyous seasons.

ALICIA  GUEL

BUSINESS ADMINISTRATOR

Alicia serves as our Executive Assistant. She joined our team in 2022 after years of working in corporate America in Revenue Cycle for HCA Houston Healthcare and most recently, The University of Texas Medical Branch.

She and her husband Mark joined Dominion in 2007 and they have been married for 13 years. Mark works in the Oil and Gas Industry as a Purchasing Manager, but he enjoys volunteering his free time here at DC through events and by leading our Parking Lot Ministry. Together they have two children, Trace and Mila Guel, who keep them busy with football and softball.

DANIELLE COLLINS

MOTHER'S  DAY  OUT  COORDINATOR

Danielle serves as our Mother’s Day Out Director (MDO), after three years as an MDO teacher. Prior to entering the early education field, Danielle obtained her MA in Clinical Psychology from Wheaton College (IL), providing mental health services, for several years to children, adults, and families.

Danielle, a proud Buckeye, moved to Texas with her husband, Will, in 2015. Will is also passionate about equipping and supporting students, in his work as a high school counselor, for their post-secondary lives. Will and Danielle are proud parents of three children - Zoë, Harper, and William.

HANNAH  LONSFORD

DC  KIDS  DIRECTOR

Hannah Lonsford serves as our Children’s Ministry Director, a role she stepped into in January 2026 after volunteering with the kids’ department since 2023. She and her family have been part of our church community since 2021.

Married to her high school sweetheart since 2013, Hannah and her husband, Taylor Lonsford, have three children — Troy, Luke, and Lindley — whom they homeschool together. When they’re not learning at home, you’ll likely find the family traveling, hiking, or camping somewhere new.

For Hannah, the most important part of her role — and of parenting — is helping kids grow in their understanding of Jesus and build a lasting foundation of faith.

TERESA  CHILDERS

SMALL  GROUPS  COORDINATOR

Teresa Childers has served on staff at Dominion Church since 2022 as Executive Administrator and Small Group Coordinator, supporting the church office with a wide range of administrative responsibilities and helping lead our small group ministry.

Teresa and her family have called Dominion Church home since June 2012, and she spent several years serving as a volunteer at DC before joining the staff. She and her husband, Brynn, were married in December 1998 and have a beautiful daughter, Lexi. In their free time, they love resting and recharging at one of their favorite vacation spots with family and friends.

Teresa's heart's desire is to serve and support those around her in any way she can. We are better together!

GRACIE BOONE

MINISTRY ASSISTANT

Gracie Boone joined the Dominion Church staff in 2026 as Ministry Assistant, where she works alongside pastors and ministry leaders to support the various ministries of DC and helping manage the day-to-day details that keep ministry moving forward.

Gracie grew up at Dominion and has had the opportunity to experience DC as a kid, student, volunteer, leader, and now staff member. She graduated from Nelson University with a degree in Church Leadership and a specialization in Youth Ministry. Outside of ministry, Gracie enjoys reading, playing and coaching volleyball, traveling, watching sports, and spending time with friends, family, and her dog, Coco.

Having experienced firsthand the impact the local church can have on someone’s life, Gracie is passionate about helping others encounter Jesus, build meaningful relationships, and find their place in the church. She especially loves investing in kids and students and getting to be a small part of what God is doing in the next generation.