Summer on the Hill Leadership


Markell Parker, Executive Director

Markell Parker leads Summer on the Hill as Executive Director, overseeing all organizational operations including finance, human resources, fundraising, program implementation, evaluation, and strategic planning.



Mabel Rodriguez, Director of Placement, High School Programs and Alumni Relations

Mabel Rodriguez works with Summer on the Hill students and families to guide them on high school and college choices. She directs and coordinates Saturday test prep classes, the Mentor Fellowship Program, college trips and the summer mentors. An SOH alumna herself, Ms. Rodriguez also maintains alumni relations via social media and events.

Board of Trustees

  • Chairman: Gary Miller, Director of Admissions Emeritus, Horace Mann School

  • Vice Chairman:

  • Treasurer: Daniel Fernandez, FCAS, MAAA, Business Actuary, Navigators

  • Secretary: Sven Mickish, Partner, Skadden, Arps, Slate Meagher & Flom

  • Founder and Executive Director Emeritus: John McIvor

  • Executive Director: Markell Parker

  • Board Members:

    • Alli Barron, Esq., Sharretts, Paley, Carter & Blauvet, P.C.

    • Brother Brian Carty, Principal, De La Salle Academy

    • Alexis-Brianna Felix, Associate, Bateman Group

    • Amy Feller, Regional Chief Operating Officer, Chubb, Inc.

    • Jen Hippolyte-Thomas, Independent Education Management Consultant

    • Robin Ingram, Associate Director of Middle & Upper Division Admissions, Horace Mann School

    • Ginger McKnight-Chavers, Esq.

    • Danielle Stennett-Neris, Chief Marketing Officer, DNES Marketing

    • Kaivan Shakib, Managing Director, Morgan Stanley

    • Tina H. Weinstein, Vice President & Counsel, Montefiore Medicine Academic Health System