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Jilly Darefsky, Head of School, Ex Officio


Founder and Board Chair

Erik Heyer is a respected education leader, business manager and social entrepreneur.  Over the past two decades, he has played key roles building, managing, and advising numerous high-quality education organizations including private schools, charter schools, school districts, online and education technology companies, colleges, universities, and social-impact investment firms.  Erik was on the founding team and management committee of Victory Schools, a national leader in the charter school and public education reform movements.  He also founded a leading autism services organization that includes The Auburn School network and the Little Leaves behavioral therapy programs.  In 2003, he was awarded a Broad Fellowship in the Broad Foundation Superintendents Academy, one of the nation’s most prestigious educational leadership training programs.  His roles in finance have included work with Goldman Sachs, New Mountain Capital, and Bridges Fund Management, a global pioneer in the field of social-impact investing. Mr. Heyer holds an M.B.A. from Harvard Business School and a B.S. in systems engineering with high honors from the University of Virginia. He has served as a trustee or director of the International Dyslexia Association, the Atlantic Seaboard Dyslexia Education Center, the Education Design Lab, Excellence with Integrity Institute, the Mental Health Association of Montgomery County, Springboard Education and Calvert Education.


Sidwell Friends School
Ms. Adelfio has been an administrator at Sidwell Friends School since 2001, where she was Assistant Head of School for Administration and Secretary to the Board of Trustees for ten years, responsible for school-wide employee contracts, facilities scheduling and school communications and oversight of the Parents Association. She managed all Board functions with a focus on governance, strategic planning and Community and Quaker Life. Since leaving Sidwell Friends School, she continues her involvement at the School leading fundraising projects for financial aid and volunteering on an Alumni communications Task Force and in various other areas. In the past, she served as President and Treasurer of the Parents Association and Chair of the Middle School Parents Association. Since 2012, Lydia has volunteered as an Elementary School Librarian at DC Prep Charter School. A graduate of Vassar College, Ms. Adelfio was an Institutional Portfolio Manager and Research Analyst covering the Telecommunications Sector at Kidder Peabody Inc.

Levine School of Music
Mr. Jablow is President and CEO of the Levine School of Music, one of the country’s leading community music schools. Mr. Jablow oversees Levine’s four campuses in metropolitan Washington, and its 150 faculty serving some 3,500 students. Under his leadership, Levine has nearly doubled in size to provide more than 800 children with subsidized or free music education. Previously, Mr. Jablow served as Executive Vice President and COO of National Public Radio (NPR); President of TicketMaster’s mid-Atlantic franchise; and CEO of Ticketron. While at TicketMaster, he grew a fledgling regional company into a $60 million operation, leading to the acquisition of Ticketron nationwide. Mr. Jablow has also been active in Montgomery County arts, having served as Chairman of the Round House Theatre Board of Trustees for eight years, and overseeing the establishment of Round House’s mainstage in Bethesda and second stage and education facility in Silver Spring. He holds a master’s degree in broadcast journalism from Boston University and a bachelor’s degree from the University of Pennsylvania.

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