School Leadership

Heather Harrison

Head of School

For over 30 years, Mariners Christian School has partnered with parents to build a firm foundation through Christ-centered education. We are a distinctly Christian school dedicated to the continual pursuit of our core values to foster a deep Love for Christ, provide Exemplary Academics, build Connected Community, and promote a Culture of innovation with a purposeful Focus on the Whole Child. From transitional kindergarten through eighth grade, we desire for our students to thrive in every way as we provide an outstanding education with authentic spiritual development in a Christ-honoring environment.

At MCS we are passionate about discovering and nurturing the unique gifts of each child. Our highly skilled and dedicated faculty is committed to inspiring children to grow in who God has created them to be as they explore their God given gifts and talents, uncover the creativity inside of them, strengthen their ability to think critically and solve problems, and expand the necessary skills of communicating and collaborating with others. Our rigorous and comprehensive programs focus not only on learning but on developing skills, habits, and character that will shape them for a lifetime. Above all else, our entire staff is committed to encouraging students to building an authentic and personal relationship with Jesus Christ and this is our highest calling.

In this ever-changing and challenging world, it is vital that children know God’s truth, understand their identity lies in being a son or daughter of the King, mature in wisdom and knowledge, and grow in confidence in all God created them to be. Within the Mariners Christian School community of administration, faculty, staff, parents, and students are safe to learn and grow as they become difference makers for His kingdom.

I invite you to visit our campus, tour our classrooms, and personally discover the difference that a Mariners education can make in the life of a child.

In Him,
Heather Harrison
Head of School

Angela Drevlow

Angela Drevlow, MCS Elementary Principal

Mariners Christian School’s elementary program builds a firm foundation through Christ-centered education. Our elementary team is called to shepherd the young hearts and minds of our students while confirming their identity in Christ. Whether your student is entering transitional kindergarten, fifth grade, or any of the grades in between, we are committed to serving each student academically, social-emotionally, and spiritually.

In a world that is ever-changing, our calling and missional work has been consistent for over three decades. The focus on the whole-child, connected community, and joy infused learning ensures that every child can thrive. Our highly effective teachers are skilled in providing differentiated instruction in the core curriculum to each student. Exemplary academics, taught through unique experiences, fosters the deepest learning. Utilizing Multi-Tiered System of Supports (MTSS) we are able to reach the diverse needs of students. And, we do all of this while intentionally building meaningful partnership with the families we serve. 

I personally invite you to visit our elementary school to see the work that God is doing and experience firsthand how your child would flourish at Mariners Christian School. 


Angela Drevlow
Elementary Principal

Sue Celek

Sue Celek - MCS Interim Vice Principal

Mrs. Celek, who is originally from Ohio, graduated from Wheaton College with a B.A. in Elementary Education. She joined the MCS faculty in 1994 as a second grade teacher. In addition to the classroom, Mrs. Celek has served MCS over the years as an administrator both as the Vice Principal and the Elementary Principal, and more recently in her role as Community Connector. She and her husband, Tim, attend The Crossing Church. They have two daughters, Emily and Lauren, both MCS alumni. Mrs. Celek enjoys spending time with her daughters, sons-in-law, and two grandsons, going to the beach, and riding a Harley with her husband.

Sam Joo

Welcome to Mariners Christian School… Home of the Lions!  
I am honored to serve as the middle school principal alongside an incredibly gifted and talented faculty and staff who are committed to working faithfully and tirelessly to honor God’s calling and uphold the mission to “build a firm foundation through Christ-centered education”

At MCS, we strive to foster a loving, caring, and fun-filled community, while sustaining exemplary academics that refine and equip our scholars with the skills and biblical worldview necessary to be transformative leaders for His name’s sake.

We offer a robust and rigorous academic program focused on preparing and engaging our scholars to think critically, work collaboratively, and solve problems in innovative and creative ways. By engaging in dynamic learning opportunities, our scholars will discover their spiritual gifts and talents, develop skills to be lifelong learners with strong biblical perspective, and build upright character so they can lead as effective and impactful difference makers in our world.   

It is equally important that we foster deep and meaningful relationships with the families we serve. MCS works with great enthusiasm to create opportunities for families to collaborate with the teachers in areas of academics, extra-curricular activities, and worshiping God. With our continual partnership with families, we trust that God will move mightily each year.

This combination of Christ-centered exemplary education, discovering and affirming the uniqueness and giftedness of each child, and a strong community synergy epitomizes the MCS culture. We are confident every child will grow and mature academically, spiritually, and relationally.


Sam Joo
Middle School Principal 
Mariners Christian School

Jordan Brown

Jordan BrownMr. Brown was born, raised and lived in San Diego, California, until he attended and graduated from California State University in Northridge with his B.S. in Business Marketing, which led him to a marketing position with the Los Angeles Clippers. However, as he felt God was calling him to serve in education, Mr. Brown pursued and received a B.A in Liberal Studies/Education and a Master’s in Education. Mr. Brown has worked as a classroom teacher since 2011, and has enjoyed teaching and learning from students and peers. He, his wife, Jackie, and his children, Jordan and Jonah, attend Orange County International Church of Christ in Irvine. With his family and friends Mr. Brown enjoys watching and playing basketball, baking with his daughter, watching movies, and having family dance parties.  

Keven Kroehler

Our Board of Trustees

The School Board is a dynamic group of volunteers committed to the success of the students, families, and faculty of Mariners Christian School. Their primary responsibilities are to set policy, assist in long-range planning, provide financial and legal oversight, serve as ambassadors for the school, and to hire, support, and evaluate the Head of School.

Board members are committed Christians who typically have experience in leadership and/or management, or prior leadership on non-profit boards. Members are carefully selected through a self-perpetuation process, and they reflect a balance in church affiliation, gender, age of children, home city, and professional background.

Please feel free to contact the MCS Board at We look forward to hearing from you.

Board of Trustees

Lewis BrewsterLewis and Stacie Brewster have been married for 20 years and have five children, Christina (graduated Baylor University in May 2016), Caroline (MCS Class of 2016), Samantha (MCS Class of 2017), William (MCS Class of 2020) and James (MCS Class of 2022). They are very grateful for the Christ-centered education at MCS and feel that it is the most valuable gift they can give their children. The Brewster family attends Mariners Church and they are actively involved in the Juvenile Diabetes Research Foundation and RTwelve. They have also supported Habitat for Humanity and mission work in Uganda and Egypt. They enjoy family dinners, road trip vacations, sports, and spending time with their two miniature dachshunds, Lucky and Lola. Lewis is Vice President of Marketing at Broadcom, a semiconductor company in Irvine, and has 30+ years of experience in the communications industry at various companies including Rockwell, Conexant, NXP and Broadcom in the Dallas and Orange County areas. He holds a Bachelor’s degree in electrical and biomedical engineering from Duke University (1986) and an MBA from Stanford University (1991).

Clifton ChangClifton has served on the MCS Board since 2018. He and his wife, Yuwen have two children at MCS - CJ (Class of ‘24) and Sydney (Class of ‘26). He is currently the HR Director at Mariners Church in Irvine  and prior to that he worked in HR at Johnson & Johnson and at Allergan. He attended Cornell University where he studied Industrial and Labor Relations and went to USC for his MBA. Experiencing God’s presence at Mariners Christian School and through its staff has blessed his family and they desire for other families in the community to experience the same.

Jason TesterJason and Anna have been married for 17 years and have three children: Hampton (MCS Class of 2020), Jack (MCS Class of 2022), and Mary Frances (MCS Class of 2025). Jason has spent the past 4 years serving on the Finance Committee for MCS. The Testers attend Mariners Church. Jason is the Chief Financial Officer of the Horowitz Group, a multi-asset class family investment office in Newport Beach. In addition to CFO responsibilities, Jason is active in the firm’s healthcare investments.  Prior to Horowitz Group, Jason served for nine years as the CFO of AcuFocus, an ophthalmic medical device company based in Irvine.  Previously, Jason worked in investment banking at Jefferies and BNP Paribas, with a concentration in healthcare. Jason began his career as a CPA. Jason holds an MBA from Emory University, a Master of Accountancy specializing in Tax and a Bachelor in Business Administration from the University of Georgia. Jason is honored to serve on the MCS Board of Trustees.  

Melinda ChoiDanny and Melinda Choi have been married 22 years and have 5 children: Taegan (MCS Class of 2016), Zeke (MCS Class of 2019), Dylann (MCS Class of 2020), Bennett (MCS Class of 2022), and Nixon (MCS Class of 2025). They are deeply grateful their children attend MCS and consider it a gift to have them raised with a Christ-centered education. The Choi family enjoys spending time together, whether it be snuggling their Yorkies, Sugar and Spice, or exploring the amazing world God has created. Fiji has a special place in their hearts and they support the nation by working with Give Clean Water to provide sustainable clean water to rural villages. As a family, they attend the W church in Newport Beach. As a couple, they have served as high school and college leaders, as well as, premarital counselors. Melinda has her BA in English from UCI and is passionate about mentoring young women and single mothers as they pursue Jesus with their whole hearts. She loves her family and considers it her dream “job” to be a wife and mom.​

Charlie HaggardCharlie and Amy Haggard have been married for 19 years and have three children: Hudson (MCS Class of 2021), Dalton (MCS Class of 2021) and Vivian (MCS Class of 2023). They feel blessed to have found MCS and are thankful for the Christ-centered education and love their children receive at MCS, as well as for the stewardship from the faculty and staff. Charlie and Amy met in Charlotte, North Carolina and lived in Charlotte and Chicago before deciding to call Newport Beach home in 2009. The Haggard family attend Mariners Church where they have enjoyed the children's ministry and serving in various community outreach projects. Amy has been actively involved at MCS volunteering in the classroom as well as serving on the planning committee for the school's Spring Auction the past several years, with Charlie recently serving on the MCS Finance Committee. Charlie is a Managing Director with real estate finance firm Berkeley Point Capital. He holds a bachelor's degree in Business Administration and a master's degree in Land Economics and Real Estate from Texas A&M University. Charlie considers it a privilege to have the opportunity to serve the MCS Community in this capacity.

Jim Harmon

Jim Co-Founded Management Resources (MR) in 1980 and the ProFun Management Group (PF) in 1999. MR is a consulting practice providing operational planning, marketing planning, and financial planning services to the leisure-time, commercial recreation industry. PF is an operating company providing management and operating expertise to the
leisure-time industry. The two companies were merged and re-branded in 2017 and now operate as a single entity (MRPF). Over the years, clients have included:
  • Commercial Attractions: Theme Parks, Entertainment Centers, Attractions
  • Cultural Experiences: Museums, Science Centers, Aquariums, Specialty Groups
  • Brand Centers: Beverage, Educational, Automotive Expositions and Events: World’s Fairs, Olympiads, National/Regional Events
Since semi-retiring in 2007, Jim serves as an advisor and provides consulting services as needed. He served as an advisor to MCS's Head of School Search Committee. 
Prior to co-founding Management Resources, Jim was with the Walt Disney Company for nine years. Joining the Disney organization in 1970 in Denver, Colorado, Jim was a Merchandise Manager and later became Employee Relations Manager before transferring to Disneyland in 1973. In Anaheim, Jim worked throughout the Park in various operational and staff training positions before being appointed to head up the Disney University at Disneyland for the last two years of his career at Disney.
Jim lives in Cowan Heights with his wife of 51 years, Marilynn. They have two daughters, Brenda and Wendy, who have blessed them with five grandchildren, two of whom are MCS alumni and one currently enrolled. Jim’s community involvement includes serving on the Board of Trustees at St. Joseph Hospital, Orange, for six years (two as Chair); chairing the search committee for the St. Joseph Hospital President/CEO position; scholarship sponsor and job candidate interviewer at Taller San Jose Hope Builders, an organization providing vocational and life skills training to disadvantaged youth.
In his personal time, Jim enjoys golf, gardening, woodworking, various men’s groups, and, of course, his grandchildren, 3 of whom have graduated from MCS.

Aaron Hudy

Aaron and Cari Hudy have been married for 15 years and have three children, Ava (MCS Class of 2022), Alexandra (MCS Class of 2022) and Bo (graduated Pepperdine University in 2019). They enjoy sailing, skiing, sports and family time at the beach.  They attend Mariners Church in Irvine and serve in both Exceptional Families and Junior High Ministries. Aaron currently serves on the MCS Finance Committee, with Compassion International as a Child Sponsor Advocate and with American Cancer Society’s CEO’s Against Cancer Southern California chapter. He is currently the President for GE Healthcare’s West Region and has spent more than 25 years in leadership roles at healthcare companies including Siemens Healthcare, Philips Healthcare and Toshiba Medical Systems. He graduated from John Carroll University in Cleveland, Ohio with a Bachelor of Science in Business Administration (Finance). Aaron served on MCS's Head of School Search Committee in 2019-2020 is honored to serve as a member of the MCS Board.

Ruth Sanchez Kobayashi

Ruth is a former MCS parent and board member. She has been married to Don Kobayashi for 33 years and is mother to Lauren, a senior at Southern Methodist University, and Kelly, a sophomore at Biola University. After graduating from Pepperdine University, Ruth spent 20 years in the tech industry in sales for Xerox, DEC, Compaq, and Hewlett-Packard. Her post-MCS volunteerism has included co-chairing Moms in Prayer at Corona Del Mar High School, serving on the Human Relations Task Force for the Newport Mesa Unified School District, and advising local educational and political candidates. She currently serves on the Board of Directors for the Newport Beach Police Department Charitable Foundation. Ruth’s favorite way to serve the Lord is by advocating for young people and assisting civic and educational leaders achieve their full potential. The Kobayashi family attends Mariners Church in Irvine.

She served the MCS community through co-leading the Head of School Search Committee in 2019-2020 for Mariners Christian School.

Mark NowlinMark and Angela have been married for 18 years and have three sons, Micah (MCS Class of 2017), Joshua (Class of 2019) and Caleb (Class of 2022). Mark grew up in Connecticut while Angela was raised in Huntington Beach. They currently attend Westminster OPC in Westminster. They enjoy reading, sports, music, and spending time with family. Mark and Angela feel very blessed to be a part of the Mariners Christian School community and are thankful for the Christ-centered education that is so important in these formative years for their children. Mark received his undergraduate degree from Fresno State, and his Doctorate in Physical Therapy from Boston University. He has been practicing as a Physical Therapist since 1999 in Orange County. With God's prompting and leading, he opened his clinic Power Physical Therapy and Sports Medicine in Costa Mesa in 2011. His specialty is in the recovery from musculoskeletal injury, including post-surgical rehabilitation. In addition, Mark serves as Adjunct Professor for Vanguard University in the Kinesiology Department. Mark is honored and humbled to serve as a Board member for MCS. Soli Deo Gloria!

meesh pierceMeesh and Graham have been married 14 years and have two boys, Grayson (MCS Class of 2023) and Ashton (MCS Class of 2025). Meesh was born and raised in Taiwan and moved to Southern California in 2nd grade. The Pierce family attends St. Andrew's Church and is blessed with loving family and childhood friends in the immediate area. Meesh has a BS in Economics and an MBA from The Wharton School at The University of Pennsylvania and currently works as an advisor to several companies across the tech sector. She enjoyed a career as a strategy consultant in software development and product marketing for the likes of Disney, Ticketmaster, NBC, Fandango, and Epson. Meesh serves as VP Programming and Technology for Wharton So Cal, an active regional alumni club serving 4000 alums, is a member of the Trustees Council of Penn Women at the University of Pennsylvania, as well as the Tech Chair for Penn's first annual alumnae conference in Oct. 2021. She's oddly and equally left and right-brained, loving Excel as much as furniture painting. She's honored to serve in this role at MCS.

Ben RobersonDr. Ben Roberson has been an educator at the Elementary, Middle School, High School, and Collegiate level for the past 16 years. After completing his undergraduate work at Point Loma Nazarene University, Dr. Roberson completed his teaching credential at Chapman University and began his teaching career at Maranatha Christian Academy in Orange CountyDr. Roberson joined the Bible Department at Oaks Christian School in Westlake Village and taught courses in Old and New Testament. During his years at Oaks, he also served as the Head Women’s Tennis coach at California Lutheran University while completing his Masters degree in Physical Education at Azusa Pacific University.

With a desire to pursue leadership, Dr. Roberson completed his Masters degree in Educational Leadership and Administration at Pepperdine University before taking on the Dean of Students role at Pacifica Christian High School in Santa Monica where he also has taught courses in the Theology Department. As the Dean of Students, Ben led a variety of programs including college counseling, academic support, and weekly chapels.

Dr. Roberson furthered his academic pursuits by completing his Doctorate at Pepperdine University in Educational Leadership, Administration, and Policy. He completed his dissertation on the motivation towards learning perceived in Socratic Seminar vs. traditional lecture in High School level students.

After completing his doctoral coursework at Pepperdine, Dr. Roberson took on the role of Head of School at Calvary Christian School in Santa Ana. During his years at Calvary Christian School, Dr. Roberson served to strengthen the academic reputation through effective faculty development resulting in significantly increased test scores in mathematics, reading, and language. Dr. Roberson also serves as an adjunct professor at Pepperdine University where he teaches courses in Secondary Methods, Content Methods for History, and Human Development.

Dr. Roberson returned to the Pacifica community in 2014 when he was named founding Principal for the Orange County campus.

Ben, his wife Cassidy, and their children, Griffin, Peyton, and Callan live in Huntington Beach where they attend Rock Harbor Church. Ben enjoys surfing, tennis, reading, and spending time with his family during his free time.

Eleanor Tang

Eleanor is currently an advisor and investor at Tee Hub. She is also a board member of Kay Family Foundation with responsibility in leading the foundation’s initiatives on advancing Christian education in Orange County, working with Orangewood Foundation on foster youth issues, and partnering with the UCI Susan Samueli Integrative Health Institute to bring integrative medicine into community health centers in Santa Ana.
Eleanor and her husband, Timothy, have been married for sixteen years and their son, Dylan, started kindergarten at Mariners Christian School in 2019. She also served on MCS's Head of School Search Committee in 2019-2020. In her spare time, she enjoys running, spending time with family, and actively participating at Saddleback Church.

300 Fischer Avenue
Costa Mesa, CA 92626
Phone 714.437.1700 • Fax 714.437.7976
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