2025 Alumni Awards

July 24, 2025

The Alumni Awards are given to Bishop Kelley alumni who have made extraordinary achievements within four different categories since graduating from Bishop Kelley.

Outstanding Young Alumni: Sam Littlefield ’10

Sam Littlefield attended Marquette from 1996 - 2006 before attending Bishop Kelley in the fall of 2006. At Bishop Kelley, Sam was President of Student Council his senior year, was also named Mr. Kelley, and was honored with the Bishop’s Medal upon his graduation in 2010.


Sam set sail west and attended the University of San Diego from 2010 - 2014. While there, Sam served as President of his fraternity during his junior and senior years. He graduated with a BA in English in 2014. During his senior year, Sam applied to Gallo Winery’s esteemed sales rep academy and out of 5,000 applicants, was one of the 14 selected for this role out of college. He received world class sales training for a year before an opportunity presented itself for Sam to work as an Account Manager at a global digital marketing agency in downtown San Diego.


In 2016, Sam moved back home to Tulsa eager to take on a role at Littlefield Agency, which his father, David, started in 1980. Sam has been at Littlefield for almost 9 years—becoming President in 2020 during the pandemic! Sam bought the agency in 2021. His role now is leading the charge on all new business and fostering key client relationships for ongoing accounts while running agency operations day-to-day.


Sam has a staff of 24 all-stars…all here in Tulsa. This year, AD AGE, which is a global media industry magazine, named Littlefield as a Best Place to Work—one of the highest national marketing awards you can receive as an agency. Sam was recently elected as the youngest Chairman in MAGNET, which is an international group of over 30 independently owned marketing agencies made up of successful CEOs and Principals throughout the world.


Sam met his wife Tara in December of 2016 and they were married in December of 2018 at Christ The King in Tulsa. Tara is a Doctor of Medical Dentistry and she owns and operates Littlefield Dentistry. They have two beautiful children: four-year-old Matthew and two-year-old Veronica. 

Dedication to Quality Education: Dr. Sylvia Hsu ’81

Dr. Sylvia Hsu graduated from Bishop Kelley High School in 1981. She then moved to Houston to attend Rice University, where she was elected to Phi Beta Kappa. Dr. Hsu graduated from Baylor College of Medicine in 1989. From there, she interned at the Graduate Hospital of the University of Pennsylvania Health System. She took her dermatology training at Thomas Jefferson University Hospital and then joined the faculty at Thomas Jefferson University as Assistant Professor of Dermatology. She returned to Baylor College of Medicine in Houston in 1997, where she became Professor and Chief of Dermatology at Ben Taub General Hospital. In 2017, she accepted the position of Professor and Chairman of Dermatology at the Temple University School of Medicine.


In 1997, Dr. Hsu received the award for the Best Minds of Baylor College of Medicine, and in 2016, she received the Master Clinician Lifetime Achievement Award at Baylor. In 2021, she received the American Academy of Dermatology’s William D. James, M.D. Mentor of the Year Award. In 2022, Dr. Hsu received the Philadelphia Dermatological Society Founders Award. Dr. Hsu has served as president of the Houston Dermatological Society and as a member of the Editorial Board for the Journal of the American Academy of Dermatology. She currently serves as a member of the Medical Board of the National Psoriasis Foundation and the Editorial Board for JAAD Reviews and JAAD Case Reports, and she is an Editorial Advisor for DermWorld. Dr. Hsu is a member of Alpha Omega Alpha and has published numerous peer-reviewed articles.

Concern for the Poor & Social Justice: Jeanette Lauderdale ’80

Jeanette Bowman Lauderdale graduated from Bishop Kelley in 1980. She attended Oklahoma State University, and upon graduation, began a thirty-year-long career at Rockwell International as a programmer and business analyst. Jeanette has been happily married to Danny Lauderdale for 36 years. The couple has four children who all graduated from Bishop Kelley. Amy in 2007, Matthew in 2010, Tara in 2014, and Christopher 2017. Tara works for the Fellowship of Catholic University Students also known as FOCUS. Christopher is currently in his novitiate year as a Capuchin Franciscan in Santa Ynez CA. Jeanette and Danny have five wonderful grandchildren.


Jeanette first began volunteering as a college student, particularly at Little Lighthouse where she helped with the children’s therapy exercises and play. She also used to visit a couple of ladies in the Stillwater Nursing Home who didn’t have any family to visit them. One morning, after Jeannette’s career ended at Spirit Aerosystems, she prayed for guidance as to where God wanted her to use her talents, and Catholic Charities literally popped into her head! She contacted them and said she was interested in volunteering. It changed her life! She was able to volunteer in several areas including Madonna House, the food pantry, the warehouse, and the clothing store.


One of her favorite memories at Catholic Charities involved her helping a boy in a wheelchair find shoes his size. After searching for quite a while, Jeanette found a pair of hiking boots that fit him; she said the smile on his face was incredible! She has also helped in the kitchen at Catholic Charities where she cooked and served meals to people needing assistance. Jeanette recently completed training to volunteer with Go Life as a sonographer assistant in the mobile unit. 

Distinguished Alumni: Marty Sedlacek ’84

Marty Sedlacek is a seasoned sales executive with a career that spans three decades and includes leadership roles at some of the most iconic names in global industry—Nestlé, Dell Technologies, and Google. He currently serves as an Executive Sales Director in Cybersecurity and Cloud at Google, supporting Fortune 100 clients in their digital transformation efforts.


A proud Bishop Kelley alumnus, Marty credits much of his success to the foundational values instilled during his high school years. Transferring into BKHS from a public school, Marty quickly found himself outside of his comfort zone—a theme that would become central to his personal and professional growth. Encouraged by faculty and football coaches to aim higher, Marty embraced challenges and emerged as a leader.


After high school, he ventured to the University of Kansas, again stretching beyond his comfort zone. Despite periods of loneliness, Marty stayed the course thanks to the support and prayers of Father Tom Hildebrand—wisdom that anchored him in faith and perseverance.


His career began in consumer goods with Nestlé, but a bold invitation from a fellow BK classmate led Marty into the tech world at Dell Computers in Austin, TX. From there, he built a successful career in IT, eventually joining Google to lead cloud and cybersecurity sales. His work has even garnered national attention, including a profile in Fortune Magazine—though his story was humorously bumped for one featuring Warren Buffett and Bill Gates.


Beyond the boardroom, Marty has spent 33 years with his beloved wife, Susan, and together they’ve raised three children—Marty Jr., Hannah, and Jacob. The family recently celebrated their anniversary with a spiritual journey to Israel, a meaningful trip rooted in the lessons Marty first learned in his favorite Bishop Kelley class: World Religion.


Marty’s dedication to service echoes the teachings of BKHS, particularly the mantra of “Time, Talent, and Treasure” shared by Mr. Gary Oberste. He supports his parish, donates monthly to St. Jude’s Children’s Hospital, and contributes annually to the Catholic Services Appeal of Austin. He’s also deeply involved in volunteering—logging countless hours supporting public and Catholic schools, even those his children have already graduated.


Reflecting on his time at Bishop Kelley, Marty is deeply grateful for the high standards and transformative experiences provided by the faculty. Teachers like Sherry Vilela, Mr. Oberste, Father Tom, and Brother Bernardine left a lasting impact—not just academically, but in shaping his character. One treasured memory includes helping Miss Meyer set up a volleyball court after school, an act of quiet service that led to a surprise class-wide benefit the next day—proof that small actions can have ripple effects.


For Marty, the quote by Brother Bernardine Kuzminski—“That which you are speaks so loudly, that I cannot hear what you say to the contrary”—is more than a motto; it’s a life philosophy. Being honored with the Alumni Award would be, in his words, “validation to this life of principle”—a recognition that living quietly, decently, and out of the spotlight is the truest measure of one’s character.


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Bishop Kelley Mission

Bishop Kelley is a Catholic diocesan high school, inspired by St. John Baptist De La Salle, that carries on the teaching ministry of Jesus Christ by preparing students’ hearts and minds for a purposeful life.


More About Bishop Kelley

Bishop Kelley High School is Oklahoma’s largest private high school and is considered a life-preparatory institution. It offers a faith-based education that fosters academic excellence, spiritual growth and personal development. The school features a rigorous curriculum, including more than 40 honors and AP courses across a wide range of disciplines. With an average ACT score of 28 and an average SAT score of 1260, Bishop Kelley graduates are well-prepared for college, with 90% attending four-year institutions. The Blessed Stanley Rother Academic Support Program provides individualized assistance to students with diverse learning needs.


Beyond the classroom, students can choose from more than 30 clubs and organizations, while athletes, academic bowl, and the speech and debate team compete in 20 OSSAA-sanctioned sports. The campus includes state-of-the-art facilities for academics, athletics, dining and the arts. Recent improvements were made possible through the successful completion of the $25 Million We Are BK capital campaign—funded entirely through private donors, not tuition dollars.

May 20, 2026
FOR IMMEDIATE RELEASE Tulsa, OK - Bishop Kelley High School has officially named Zach Postoak as Head Varsity Baseball Coach following his service as Interim Head Coach during the 2025–2026 season. Postoak joined the Bishop Kelley community during the 2024–2025 school year and has quickly become an important part of both the academic and athletic departments. He began as a full-time substitute teacher before transitioning midyear to teach computer literacy while also serving as an assistant coach for both the baseball and softball programs. Prior to arriving at Bishop Kelley from Owasso Public Schools, Postoak taught and coached in Oklahoma at Berryhill Public Schools and Cushing Public Schools. During his career, he has served in both head baseball and assistant softball coaching roles, helping lead teams to district championships and postseason appearances. He also spent time coaching at Northwestern Oklahoma State University, where he earned a Bachelor of Science in Health and Sports Science. During the 2025–2026 season, Postoak stepped into the Interim Head Baseball Coach role and helped guide the Comets to a runner-up finish at the OSSAA Class 5A State Baseball Championship. “Zach has done an outstanding job leading our baseball program,” said Bishop Kelley Athletic Director Lance Parks. “This team competed at a very high level throughout the season, finished undefeated in district play, and made an outstanding run to the state championship game. We are excited to officially name Zach as our head varsity baseball coach and look forward to continuing to build on the momentum and success of this season.” Postoak expressed gratitude for the opportunity to continue leading the program. “I’m thankful for the opportunity to continue serving Bishop Kelley and leading this baseball program,” Postoak said. “This season gave our student-athletes the opportunity to grow, compete, and learn at an elite level together, and I’m excited to continue building on the foundation our players and coaching staff have established.” In addition to serving as Head Varsity Baseball Coach, Postoak was recently named Head Softball Coach for the Comets softball program. About Bishop Kelley Baseball Bishop Kelley Baseball competes in OSSAA Class 5A and is committed to developing student-athletes who pursue excellence in competition, leadership, and character. The Comets program emphasizes discipline, teamwork, and representing Bishop Kelley with pride on and off the field. About Bishop Kelley Bishop Kelley High School is Oklahoma’s largest private high school and is considered a life-preparatory institution. It offers a faith-based education that fosters academic excellence, spiritual growth and personal development. The school features a rigorous curriculum, including more than 40 honors and AP courses across a wide range of disciplines. With an average ACT score of 28 and an average SAT score of 1260, Bishop Kelley graduates are well-prepared for college, with 90% attending four-year institutions. The Blessed Stanley Rother Academic Support Program provides individualized assistance to students with diverse learning needs. Beyond the classroom, students can choose from more than 30 clubs and organizations, while athletes, academic bowl, and the speech and debate team compete in 20 OSSAA-sanctioned sports. The campus includes state-of-the-art facilities for academics, athletics, dining and the arts. Recent improvements were made possible through the successful completion of the $25 Million We Are BK capital campaign-funded entirely through private donors, not tuition dollars.
May 20, 2026
FOR IMMEDIATE RELEASE Tulsa, Okla. - Bishop Kelley High School is pleased to announce the hiring of Julia Dierker as the school’s new Varsity Girls Golf Coach and a member of the Social Studies faculty. Dierker brings a strong combination of competitive golf experience, classroom leadership, and program development to Bishop Kelley. Most recently, she served as the Girls Varsity Golf Coach and English teacher at Broken Arrow Public Schools, where she revitalized the girls golf program and helped guide multiple student-athletes to collegiate golf opportunities. Under her leadership, the program earned back-to-back Frontier Valley Conference Runner-Up finishes, and at least one athlete committed to college golf each year. In addition to her coaching success, Dierker has experience teaching several subjects at the secondary level and will obtain her master’s degree through Northeastern State University at the end of this calendar year. She has also worked extensively in youth development and athletics programming through organizations such as First Tee-Tulsa. “Julia’s passion for mentoring young women, her competitive drive, and her commitment to helping students grow both academically and athletically make her an outstanding addition to Bishop Kelley,” said Lance Parks. “We are excited to welcome her to our community and look forward to the impact she will have on our students and golf program.” Dierker said she was drawn to Bishop Kelley because of the school’s strong academic standards, competitive culture, and mission-centered environment. “Coaching young women to lifelong improvement and success in the classroom and in sport is my passion,” Dierker said. “I admire the strong tradition of academic excellence, competitive achievement, and high standards that define Bishop Kelley, and I am excited for the opportunity to contribute to the continued success of the school and its students.” A former collegiate golfer herself, Dierker competed at both Coffeyville Community College and University of Arkansas–Fort Smith, earning Academic All-American honors and serving as team captain during her collegiate career. Dierker will begin her role at Bishop Kelley for the 2026–2027 school year. About Bishop Kelley Girls Golf The Bishop Kelley Girls Golf program has a strong tradition of competitive excellence, sportsmanship, and student-athlete development within the OSSAA. Comet golfers are challenged to grow both on and off the course through discipline, integrity, and a commitment to continual improvement. The program emphasizes individual growth while fostering a team culture rooted in accountability, encouragement, and respect for the game. Bishop Kelley Girls Golf strives to develop confident young women who pursue excellence in athletics, academics, leadership, and service while representing the mission and values of Bishop Kelley High School with pride. About Bishop Kelley Bishop Kelley High School is Oklahoma’s largest private high school and is considered a life-preparatory institution. It offers a faith-based education that fosters academic excellence, spiritual growth and personal development. The school features a rigorous curriculum, including more than 40 honors and AP courses across a wide range of disciplines. With an average ACT score of 28 and an average SAT score of 1260, Bishop Kelley graduates are well-prepared for college, with 90% attending four-year institutions. The Blessed Stanley Rother Academic Support Program provides individualized assistance to students with diverse learning needs. Beyond the classroom, students can choose from more than 30 clubs and organizations, while athletes, academic bowl, and the speech and debate teams compete in 20 OSSAA-sanctioned sports. The campus includes state-of-the-art facilities for academics, athletics, dining and the arts. Recent improvements were made possible through the successful completion of the $25 Million We Are BK capital campaign-funded entirely through private donors, not tuition dollars.