Andrew Otero Dundalk, MD Honoring His Memory, Cause of Death: Mathematics Teacher at Severn School Unexpectedly Dies, Students Mourn

 The Severn School community situated in Severna Park is mourning the devastating loss of Andrew Otero, a former mathematics teacher who left an indelible mark on students, fellow faculty members, and the broader school community.


Originating from Bristol, Connecticut, Otero committed himself to the fields of education, service, and mentoring. As a proud first-generation service member, he enlisted in the United States Marine Corps in 2009 at the age of 17. During his five-year tenure, he was stationed in Washington, D.C., where he worked closely with the White House during the Obama administration—an opportunity that illustrated his commitment and discipline in public service.

Following his military service, Otero progressed as a first-generation college graduate. He earned a bachelor’s degree in applied mathematics from Towson University, laying the groundwork for a career distinguished by intellectual engagement, thoroughness, and a passion for teaching. He later made his home in Dundalk, Maryland.

At Severn School, Otero's responsibilities extended far beyond those of a math instructor. He taught some of the most challenging and rewarding courses available at the school, including AP Computer Science Principles and AP Calculus AB—subjects he loved and brought to life for his students. His classroom served as a supportive environment where high standards met encouragement, urging students to think critically while being respected as individuals.

Beyond his teaching duties, Otero undertook a variety of leadership and mentoring roles. He served as the Grade Dean for the Class of 2025, acting as a reliable advisor during crucial developmental stages for his students. Additionally, he led United Spectrum, an initiative focused on gender and sexuality, as well as the Severn Service Society, which supports both the school and the broader Annapolis community. His commitment to equity and inclusion was further evident in his position as the Upper School DEIB Coordinator.

Otero's dedication also encompassed athletics and institutional responsibilities. He served as Head Coach for Track & Field, mentoring student-athletes with the same care and discipline he devoted to his academic duties. Furthermore, he participated in the school’s Steering Committee and co-chaired the financial aspect of Severn School’s accreditation, making significant contributions to the institution’s strategic vision and sustainability efforts.

Most importantly, Andrew Otero was a beloved father, a loyal friend, and a well-respected teacher and coach. Those who had the fortune of knowing him remember his integrity, commitment to helping others, and his ability to relate to people from a wide array of backgrounds and roles. His life was a remarkable amalgamation of compassion, leadership, and service.

The loss of Andrew Otero is profoundly felt within the Severn School community and beyond. As students, colleagues, friends, and family process their grief, they also honor a legacy defined by steadfast dedication, courage, and a strong belief in the potential of others.

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