Alumni Association

St. Mark's welcomed more than 1,300 graduates and guests to campus for Alumni Weekend 2026. Over three days, Marksmen reconnected with each other and celebrated their School community that continues to have a meaningful impact on their lives.

Middle School Assembly: Cristian Hinojosa ’96

Middle Student students listened to a special talk by Cristian Hinojosa ’96, Deputy Chief of the Dallas Fire Department.

Upper School Assembly: Dan Hunt ’96

Upper School students attended a special assembly with Dan Hunt ’96, President of FC Dallas and Co-Chair of the North Texas FIFA World Cup Board of Directors.

Alumni Chapel Homilist Alan Schoellkopf ’91

ALUMNI AWARDS

Alumni Service Medal

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  • David Ackerman ’89

    The Alumni Service Medal is St. Mark’s highest volunteer service award. It is presented to an alumnus who has distinguished himself through sustained and outstanding service to the School.

    David Ackerman ’89 has devoted more than 35 years to serving St. Mark’s with consistency, humility, and purpose. From his service on the Alumni Board from 1996 to 2002 to nearly two decades as a Trustee from 2008 to 2025, David has given the School his time, wisdom, and steadfast support. Among his many contributions, David helped lead the Alumni Association’s successful effort to achieve 50 percent participation in the St. Mark’s Fund, a milestone first reached during his tenure as annual fund chair and sustained for the past 17 years. In 2003, David became the inaugural recipient of the Young Alumni Service Citation, making him the first alumnus to receive both of the Alumni Association's volunteer awards. 

Young Alumni Service Citation

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  • Jordan Dyslin ’11

    The Young Alumni Service Citation recognizes young alumni prior to their 15th Reunion for outstanding service to the School.


    Jordan Dyslin ’11 has remained deeply and thoughtfully connected to St. Mark’s since graduation. He has served across multiple Alumni Board committees, always stepping forward with a willingness to help and a commitment to making a difference. Within his class, Jordan has been a steady and trusted leader — chairing his 5th, 10th, and now 15th reunions. Jordan has been a member of the Alumni Board since 2023, when he expressed interest in leading the regional club in Boston. As Regional Chair, he has worked intentionally to bring alumni together, especially our youngest graduates, creating opportunities for meaningful connections and mentorship.

RALPH B. ROGERS ALUMNI AWARD

The Alumni Association named three extraordinary educators as finalists for the Ralph B. Rogers Alumni Award. This award recognizes a member of the faculty or staff who has made an important and pioneering contribution to the mission of the School and the School community.

The award recipient will be announced at Upper School Final Assembly.

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  • Stewart Mayer

    Makerspace Director

    Stewart Mayer redefines what a learning environment can be. From early morning to late at night, his classroom and workshop are alive with students designing, refining, and pushing the limits of their ideas. He has built not just a program, but a culture of innovation. Stewart's expertise spans engineering, coding, and manufacturing, but what sets him apart is how intentionally he fosters curiosity and creativity. His classes are defined not by content, but by the minds they open and potential they awaken. Stewart also leads the robotics program, dedicating countless hours to building competitive teams while emphasizing discipline, teamwork, and resilience.

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  • Cindee McMahon

    Middle School Humanities Teacher

    Cindee McMahon reminds us that some of the most impactful work at St. Mark’s happens quietly, one student at a time. She is a steady, trusted presence, known for excellence and deep commitment to each boy. Her belief in her students serves as a catalyst as they journey on their path to manhood. As one nominator said, “She does far more than teach curriculum; she changes the trajectory of a child’s confidence and future.” Throughout her more than three decades at St. Mark's, she has taught both Middle and Lower School Marksmen and was recognized with the Murrell Excellence in Teaching Award in 1993.

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  • Nancy Marmion

    J.J. Connolly Master Teaching Chair

    Nancy Marmion has been a constant presence at the School, shaping generations of Marksmen and guiding faculty through her wisdom and example. In and beyond the classroom, she is tireless in developing both the academic skills and character of her students. Over Nancy's 40-year career at 10600 Preston Road, she has served in numerous roles — Department Chair, Discipline Council Chair, Faculty Senior Master, sponsor of the Spanish Club and International Week, and member of the Admissions Committee — devoting her life to the School. As one colleague noted, "She continually revises and rethinks her teaching to ensure her classes maximize learning and resonate deeply with her students."

PHOTOS

Reunion Photos

St. Mark’s School of Texas

10600 Preston Road
Dallas, Texas 75230
214-346-8000

About Us

St. Mark’s School of Texas is a private, nonsectarian college-preparatory boys’ day school for students in grades 1 through 12, located in Dallas, Texas. St. Mark’s aims to prepare young men to assume leadership and responsibility in a competitive and changing world.

St. Mark’s does not discriminate in the administration of its admission and education policies on the basis of race, color, religion, sexual orientation, or national or ethnic origin.