OCS Administration

Bob Yttredahl
Upper School Principal

Bob Yttredahl leads the Middle and Upper School faculty and students. The Middle School Coordinator and Upper School Coordinator function under his direction. He is a beloved figure in the upstairs hallway and has it made a personal mission to meet students where they are and help them strive to reach their full potential.

In his 24 years in education, Mr. Yttredahl has served in many roles including as Head of Upper School, Dean of Faculty, Boys Basketball Coach, and Athletic Director. He grew up in Iowa and received a B.S. in English and Secondary Education from Wayne State College. He is a proud life-long Cyclone. He attended Iowa State and worked at their summer basketball camps. After moving to the Dallas area, he earned his master’s in Educational Leadership from SMU.

Mr. Yttredahl believes it is important not to simply be a fan of Christianity but to be an active member of the church in order to grow in relationship with Christ. This is how a Christian grows in faith and knowledge of Jesus. “For this very reason, make every effort to supplement your faith with virtue, and virtue with knowledge, and knowledge with self-control, and self-control with steadfastness, and steadfastness with godliness, and godliness with brotherly affection, and brotherly affection with love. For if these qualities are yours and are increasing, they keep you from being ineffective or unfruitful in the knowledge of our Lord Jesus Christ. For whoever lacks these qualities is so nearsighted that he is blind, having forgotten that he was cleansed from his former sins.” (2 Peter 1:5–9 ESV)

Mr. Yttredahl has a son, RJ, and a daughter, Becca. He enjoys reading, working outside, and watching Iowa State. He spends his free time attending his son’s basketball games and daughter’s volleyball games. He is a member of Ovilla Road Baptist Church.

Sherry Fragale
Lower School Principal

Sherry Fragale oversees and cares for the faculty and staff of the OCS Early Education and Lower School. This includes the EE 2-Day program, PreK3 and PreK4, and Kindergarten through Grade 5. She makes it a daily mission to ensure teachers' needs are met, students are thriving, and parents have the opportunity to partner with the school. She is passionate about building relationships and will strive to create a caring and nurturing environment where students will become life-long learners and disciples of Christ.

Mrs. Fragale has been in education for over 30 years. She received both her B.S. and M.Ed. from the University of North Texas and has spent 30 years in elementary education. Her roles in the public school system have included: teacher, instructional specialist, summer school principal, and assistant principal. Throughout her career in education she has held fast to Joshua 1:9: “Have I not commanded you? Be strong and courageous. Do not be afraid; do not be discouraged, for the LORD your God will be with you wherever you go.”

Mrs. Fragale enjoys traveling and spending time with her three grown kids and her husband, Mark. She loves to lead worship and music is a big part of her life. She is a member of Ovilla Road Baptist Church and is extremely grateful the Lord led her to join the OCS family.

Teresa Prendergast
Director of Early Education

Teresa Prendergast supervises the OCS Early Education faculty and staff. Early Education serves babies through PreK4. Mrs. Prendergast strives for each child to meet developmental milestones and raise them up as confident students, fully prepared for Kindergarten. Mrs. Prendergast leads the faculty in the knowledge that the Gospel is at the center of teaching and discipline.

Mrs. Prendergast began her career at Ovilla Road Baptist Church in 2006 where she has served as the Mother’s Day Out Director, Children’s Minister, and Preschool Minister. The heart of her ministry not only encompasses a child’s education but also seeks to minister to families holistically. For this reason, she is currently studying at Southern Baptist Theological Seminary with the aim to concentrate on Biblical Counseling. She and her husband have been longtime members at Ovilla Road Baptist Church. She loves serving in the kid's ministry.

Corey Acton
OCS & ORBC Business Administrator

Corey Acton manages the finances and facilities for Ovilla Christian School and Ovilla Road Baptist Church. She oversees the financial operations for the campus, working with the budgets to ensure that both the school and church are above reproach in the handling of their resources. Mrs. Acton is also responsible for managing the facility by utilizing programs to reduce energy consumption and working with the Facilities Director to maintain the campus.

Mrs. Acton began her career with Fleming Foods and went on to work for Michaels and the Army Air Force Exchange Service in inventory management and procurement. She has been with ORBC since 2013. She holds a Master of Business Administration and a Bachelor of Business Administration from Texas Tech University.

Mrs. Acton is a member of Ovilla Road Baptist Church. In her free time she enjoys running, digital scrapbooking and spending time with her husband and son.

Julianne Fowler
Director of Marketing and Communication

Julianne Fowler plans and oversees the marketing and enrollment efforts, branding, and social media at OCS. It is her goal to elevate the name of the school in the public’s eyes and clearly articulate its mission with every piece of internal and external communication.

After graduating from the University of Oklahoma with a Bachelor of Fine Arts in Visual Communication, Mrs. Fowler worked in the world of print and online magazines as a graphic designer and art director for Advocate Media in Dallas. She worked in the Office of Communication at The University of Texas at Dallas in Richardson for almost a decade, prior to joining OCS.

Mrs. Fowler, her husband, and their four children are members of Ovilla Road Baptist Church. She enjoys reading, listening to audiobooks and podcasts, cooking, and playing family board games. Psalm 145:18 has been a verse of particular significance for her: “The Lord is near to all who call on him, to all who call on him in truth.”

Donna Garrett
Admissions Director, Guidance Counselor, & Registrar

In her role as Admissions Director, Donna Garrett is the first person most people meet at OCS. She takes prospective families on tours and walks them through the admissions process. She also serves as the Registrar. As the Guidance Counselor, Mrs. Garrett works with students as they progress through middle and high school. She assists them as they seek admission into universities and pursue the career path that God has planned for them.

Mrs. Garrett has a Bachelor of Science in Business Education from Mississippi State University.  She has been at OCS for 20 years. She previously taught at two other private schools and worked at various businesses. Mrs. Garrett and her husband, Logan, have been members of ORBC for more than 25 years and have delighted in seeing the Lord move and work through the church and school in many ways.

Mrs. Garrett truly enjoys getting to know OCS students and maintains relationships with many of our alumni. She considers the following verse to be a foundational principle as she engages with students: “My purpose is that they may be encouraged in heart and united in love, so that they may have the full riches of complete understanding, in order that they may know the mystery of God, namely, Christ, in whom are hidden all the treasures of wisdom and knowledge.”  (Colossians 2:2-3)

Mrs. Garrett loves spending time with her three amazing grandchildren and cheering on, if not attending, sporting events for the OCS Eagles and MSU Bulldogs.

Erich Lehmann
OCS Director of Spiritual Life & ORBC Assistant Youth Minister

As Director of Spiritual Life at OCS, Erich Lehmann oversees activities that encourage spiritual growth in staff, faculty, and students. He runs the chapel programs, ensures that the curriculum is Scripturally sound, plans service activities, and acts as an on-campus point of contact for students and staff to discuss spiritual questions and concerns. Mr. Lehmann also serves as the assistant youth minister at ORBC.

Mr. Lehmann has a bachelor's degree in criminal justice from Stephen F. Austin State University. Mr. Lehmann served as a police officer for almost eleven years with the Irving Police Department before being called by God into ministry. Mr. Lehmann, his wife, and their two sons have been members at ORBC since 2015.

Mr. Lehmann enjoys getting to know the students of OCS and walking alongside them in their spiritual growth. His desire is for students to be changed through a relationship with Christ:  "And I, when I came to you brothers, did not come proclaiming to you the testimony of God with lofty speech or wisdom. For I decided to know nothing among you except Jesus Christ and Christ crucified." (1 Corinthians 2:1-2)

In his free time, Mr. Lehmann enjoys spending time with his family, debating premier league soccer with friends, and playing video games.