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Our Leadership

David Mancos, Interim Head of School

David Mancos

In December 2023, current Chief Financial Officer David Mancos  was named Interim Head of School. As a trusted and valued member of our community for nearly 25 years, David is a committed and hard-working leader, has shaped and developed a "best practices" culture that touches every aspect of the school's operations—from investment to accounting to property and grounds to ancillary services.

During his tenure in key leadership roles, including successfully serving as Interim Head of School for the 2021–22 school year, David has demonstrated keen leadership and communication skills, steadfast dedication, and tremendous strategic vision throughout his distinguished career at Country Day. 

Administrative Council

Katharine Atkins

Katharine Atkins

Director of Advancement
Shannon Drosky

Shannon Drosky

Director of Marketing and Communications
Nancy Ehringhaus

Nancy Ehringhaus

Director of Admissions and Financial Aid
Joe Hernick

Joe Hernick

Director of Educational Technology
Matt Less

Matt Less

Head of Upper School
David Mancos

David Mancos

Chief Financial Officer
Bill Mulcahy

Bill Mulcahy

Head of Lower School
Warren Sepkowitz

Warren Sepkowitz

Head of Middle School
Masanori Toguchi

Masanori Toguchi

Director of Athletics
Scott Waybright

Scott Waybright

Assistant Head of School
Brian Wise

Brian Wise

Director of Diversity Planning, History Teacher

2023-24 Board of Trustees

Officers:
William H. Zimmern '95, Chair
Dr. Lauren I. Browne, Vice Chair
Stoney D. Sellars, Vice Chair
R. Glenn Sherrill Jr. '89, Vice Chair
Scott R. Stevens, Past Chair
Andrew W. Tate, Secretary-Treasurer 

Members:
Howard C. Bissell*
Samuel B. Bowles '93
Luther J. Blythe Jr. '96
Brian F. Chambers
Dr. Kandi Deitemeyer
Pontea F. Dixon
Ronald E. Eliasek, Jr.
Samuel E. Farnham, Sr.
Samuel B. Hood '96
Shanon Jones
Dr. Tiffani M. Jones
Dr. Gary L. Little
Su Ping Lu
Michael B. Maguire
J. Scott Mattei
Stanton D. McCullough
Sally Cannon Saussy '67*
Dr. Lisa M. Toppin
Jennifer J. Ward
Ann E. Willey

David Mancos (Ex-officio)

* Life trustee