Board of Directors

Hillary H. Hughes

Hillary H. Hughes is a partner in the law firm of Garvey Schubert Barer in New York, New York, where she practices Corporate, Sports and Entertainment and Technology law. She received a Bachelor of Arts from Emory University and a Juris Doctorate from Louisiana State University.

Hillary is dedicated to pro bono service to both non-profit organizations and individuals unable to afford legal services and to personal volunteer service to a variety of public charities. She is a founding member of the Board of Directors of the Park Slope Schoolhouse Child Care Center, Inc., and also serves as a member of the Board of Directors of SKIP (Sick Kids Need Involved People) of New York, Inc.

Hillary has two children, both alums of the Park Slope Schoolhouse and its predecessor, the Berkeley Carroll Child Care Center.

Allison Brown

Allison Brown is the Director of Professional Development for the ASD Nest Support Project at New York University.  Allison provides on-site consultation to administrators and teachers to implement strategies to capitalize on strengths and address social and academic difficulties of students on the autism spectrum.  In this role, she also leads, and develops, courses and professional development workshops for school staff on best practices for students on the spectrum.

Allison is a former teacher and special education coach in the NYC public schools.  She has been an adjunct professor at Hunter College and New York University, teaching courses on instructional methods for students with disabilities, and behavior theory and interventions.  She received her Bachelor of Arts in Psychology at The Ohio State University and her Masters and dual certification in childhood and special education at New York University.

Allison is married to Dwayne Brown, owner and personal trainer at Starting Line Fitness.  Allison and Dwayne have two children, one of whom is currently attending Park Slope Schoolhouse and the other is an alum.

Lyn S. Hill
Lyn S. Hill is the former Vice President for Communication and External Affairs at New York Methodist Hospital. She received a BA and an MA from Queens College and a PhD from the City University of New York.

Lyn is active in numerous community organizations, including the Park Slope Civic Council and the Brooklyn Chamber of Commerce. She was president of the board of the MHB Childcare Center and later a member of the board of the Berkeley Carroll School, during the years after Berkeley Carroll took over the Child Care Center. She has been a member of the board of the Park Slope Schoolhouse since it became an independent organization.

Lyn was married to the late Forbes I. Hill, a professor of media studies at Queens College. Their three grown children have, to-date, produced seven grandchildren.

Elissa C. Icso, AIA, LEED AP

Elissa C. Icso, AIA, LEED AP is the Founder / Principal of Urban X Studio Architecture, PLLC and has been a practicing registered Architect in New York State for over 15 years.  Prior to founding her own practice, she was a senior architect and Associate at the prize-winning architectural firm Platt Byard Dovell White Architects.

Elissa received her Bachelor of Architecture degree from Cornell University in 1991.  Her current architectural practice focuses on educational and cultural facilities, as well as residential design.  Elissa was one of the original founding members of the board of the Park Slope Schoolhouse Child Care Center, Inc. and was responsible for the architectural design of the new center at 556 5th Avenue.

Elissa is married to Robert W. Balder, an urban planner and the Executive Director of Cornell University’s NYC AAP Center.  Their two children are alumni of the former Berkeley Carroll Child Care Center and the Park Slope Schoolhouse Child Care Center and currently attend neighborhood schools in Park Slope.

Sarah Rosskamm
Sarah Rosskamm is the founder of Hendy Avenue Consulting, an education consulting supporting districts, states and CMOs nationwide with their talent strategies. In this role, Sarah has partnered with the Delaware Department of Education, Cleveland Metropolitan School District, KIPP Texas and many others to develop, evaluate, recognize and retain their teachers and school leaders.

Prior to consulting, Sarah was the Senior Director of Talent Development for Achievement First, a network of over 30 high performing charter schools serving low income children in Brooklyn, Connecticut and Rhode Island. Sarah is also a former classroom teacher, having taught both first and fifth grades. She received a Bachelor of Arts in Human Services from George Washington University and a Masters in Public Management from Carnegie Mellon University.

Sarah is a new member of the Park Slope Schoolhouse board and a proud parent of two children, one of whom is currently attending Park Slope Schoolhouse and the other, an alum.

Robert J. Weaver
Robert J. Weaver is a partner at the accounting firm RSM US LLP in New York, New York where he advises private equity firms and corporate entities on merger and acquisition transactions. Rob is a certified public accountant in the state of New York and has been practicing public accounting for over 18 years. Rob received his Bachelor of Business Administration from the University of Massachusetts at Amherst.

Rob is married to Jennifer L. Brillante-Weaver, an attorney with The Legal Aid Society’s Juvenile Rights Practice in New York County where she represents children in child abuse and neglect, voluntary placements, destitute child, adoption, custody and juvenile delinquency matters. Rob and Jen have one child who is an alum of the Park Slope Schoolhouse and are actively involved in volunteer and charitable services in the surrounding community.

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