About Michael C. Wirtz

Michael C. Wirtz officially joins the St. George’s School community on July 1, 2023, becoming the 13th head of school.

Mr. Wirtz is currently the head of school at Hackley School, a K-12 independent school in Tarrytown, New York. During his tenure at Hackley, Mr. Wirtz led an inclusive strategic planning process that resulted in the creation and implementation of the school’s current strategic plan, Redefining Excellence: Learning Beyond Boundaries, as well as a comprehensive campaign initiated to support it. Through Redefining Excellence, the school increased interdisciplinary and experiential offerings, elevated the creative arts and computer science, built relationships with community partners and embraced service-learning, and developed an orchard and apiary on campus to better leverage campus as an educational resource.
Wirtz Family
Additionally, Mr. Wirtz was involved in numerous construction projects, including the completion of the 115,000-square-foot Johnson Center for Health and Wellness, the construction of 12 additional faculty housing units on campus, and most recently, the design and initial phases of construction of the Center for the Creative Arts and Technology. Other notable accomplishments during his tenure include advances in Hackley’s approach to diversity, equity, and inclusion work through the development of multiyear DEI plan, which resulted in a board-endorsed statement of purpose, a community-wide climate assessment, robust professional development for employees, and the appointment of the school’s first full-time senior leader to oversee DEI work.

Prior to joining Hackley, Mr. Wirtz served as Assistant Head/Dean of Faculty at St. Mark’s School in Southborough, Massachusetts, for six years, playing an active role in the development and implementation of the school’s strategic plan, including its signature STEM initiative, while also continuing to teach chemistry and serve as an advisor. Before St. Mark’s, Mr. Wirtz taught at Concord Academy in Concord, Massachusetts, for nine years, serving in a variety of roles including science department head, dorm parent, advisor, and coach. Mr. Wirtz began his teaching career at The Montgomery Academy in Montgomery, Alabama, where he taught and coached for two years after transitioning from working as a research scientist at Pfizer, Inc.

Mr. Wirtz is a proud graduate of Ohio University, where he earned his Bachelor of Science in Chemistry, Summa Cum Laude, and was elected to Phi Beta Kappa, Lambda of Ohio. He subsequently earned his Ed. M. in Policy, Planning, and Administration at Boston University.

Mr. Wirtz and his wife, Hilary, join the St. George’s community with their two children.

Q&A with Mr. Wirtz

Head of School Michael Wirtz

St. George’s 13th Head of School
Michael C. Wirtz

Watch the Announcement