admin & school board

Brenda joined the CTCS family in 2014 and serves as our Head of School. She graces our halls with a spirit of encouragement and an amazing capacity of love. Brenda has a passion for nature and the great state of Texas. She enjoys taking day trips, and is currently attempting to visit all the historical forts within the state. She considers herself a connoisseur of hamburgers and visits local burger joints everywhere she travels; her favorite as of today is in Columbia, SC at Pawley’s Front Porch. Brenda has also dreamed of traveling with her family to Ireland and Scotland. She and her husband of 41 years (Bob) have three grown children (Tamara, Tyler, and Rance), a precious daughter-in-love (Kim), a son-in-love (Chris), one granddaughter (Harper Grace) and two grandsons (Ridge Levi and Cash Townes).

“Every morning I feel I need to pinch myself. I am overwhelmed with the blessing of knowing God has given me His mercy and grace and a new day to share His love with His children. Are you kidding? He chose me to work with His most precious creation – His children? What an honor and a great joy.”

Nabil “Bill” Diab has been at CTCS for over five years, starting as a 5th grade teacher. Along with his duties as an Assistant Principal, Bill teaches 4th and 5th grade Bible and Social Studies.

Bill is married to Denise. Between them, they have six children and three grandchildren. Bill is originally from Lebanon and came to the United States thirty years ago. Lebanon is an amazing place for its beauty and its biblical connection throughout the Bible.

“I can’t express enough to you how blessed I am for the wonderful life I have received through our Lord and Savior. When I cried out for Him, He heard me. I’m always ready to share my testimony with you.”

Janet serves as our Preschool Director and has been at CTCS for 20 years. She and her husband, Lanny, have been married for 35 years and have four grown children (Cory, Sean, Amy, and Emily) two of which are proud CTCS Alumni. Janet loves CTCS and has poured many years of wisdom and passion into the school. Her smile is infectious and loved by not only the staff and faculty but every preschooler who adores her as well. Janet has always dreamed of going to Israel and hopes to go one day with her husband. When not at CTCS, she loves spending time with her family and friends, going to movies and dinner, and enjoys spoiling her three adorable grandsons, Seito, Meyers and Major and her granddaughters, Carter and Mila.

Karen has been a part of the CTCS family since 1988 and serves as the Dean of Students, Cheerleader Sponsor, Retreats Administrator, and Speech & Academics Sponsor. She and her husband of 45 years (Bobby) have three children and ten grandchildren. Karen’s commitment and love for CTCS is obvious as she dedicates herself to its missions and its families. When she does have down time, she enjoys watching movies, eating popcorn, relaxing by the pool, watching the stars, and playing with her grandchildren. She also hopes to explore the other side of the ocean and take a tour of Italy, Paris, England, Ireland, and Scotland.

Coach Calahan joined the CTCS family in 2015, and serves as the Athletic Director and Head Football Coach.
He was blessed to play college football at Rice University, where he served as Team Captain. He went on to play professionally in the NFL with the St. Louis Rams.
Coach Calahan and his wife Hillary have been married for 14 years, and have two daughters, Landry (8) and Chloe (4), who attend CTCS. They are members of Temple Bible Church.
“Working in education, my job allows me to witness and glorify God daily. I am blessed and honored to have this wonderful pedestal to impart the love of Christ to young people.”
– Jeremy Calahan

Karla has been blessed to serve in Christian education for fifteen years. This is her second year as a member of the CTCS family, and she is excited to be working as the College Counselor with our impressive group of high school students. Karla’s greatest desire is that students will seek God’s will first and foremost in all of their college and career decisions. By doing that, students will fully discover the Lord’s incredible path for their lives. Karla and her husband Joe have been married for 27 years and have two amazing daughters, Evelyn (25) and Robin (20). Karla enjoys baking, spending time with her family, and exploring the beautiful scenery of the Central Texas landscape.

In the fall of 2020 Sarah joined the CTCS administration as the Director of Student Life. In this new position, Sarah continues to coordinate the CTCS Retreat Program, in addition to the CTCS Mission Trip Program, the CTCS Ambassador Program, and the Reimagined Lion Leadership Program. While she is developing more projects to enhance the CTCS student experience, Sarah enjoys being available to students as she works from campus three days a week.

Sarah and her husband, Stephen, have been married for over 25 years and have three children. Jack, their oldest son, graduated from CTCS in 2018. Caroline, their daughter, graduated from CTCS in 2020. Sam, their youngest son, is currently a freshman at CTCS.

In 2004, Sarah and her husband, Stephen, enrolled their son Jack in the CTCS Pre-K 4 class. After a year of involvement in CTCS as a parent, in 2005 Sarah was asked to join the CTCS school board. Sarah served CTCS as a board member until 2014.

Bob Hopper joined the CTCS family in 2018 as our CFO. He has worked as an accountant and financial manager for over 37 years, serving both in the private and public sectors. Bob has spent a total 26 years working for the State of Texas, 9 years with the University of Texas system and 17 years with several state agencies; most recently with the Railroad Commission. He has served in various positions throughout his career, including Chief Accounting Officer, Budget Manager, Business Manager and Director of Operations.
At CTCS, Bob is the Chief Financial Officer and has the responsibility for planning and running all the financial activities for CTCS; including business planning, budgeting, reporting of income, expenses, forecasting and overseeing all contributed and invested school funds.
Bob graduated from the University of Texas at El Paso with a BBA, with emphasis on accounting and marketing. Bob has been married to Linda for 40 years and has two grown children and one fabulous grandson.