Board of Directors 

Arthur G. Altschul, Jr., Chair of the Board

Stephen F. Altschul

Emily Altschul-Miller

Carolyn J. Cole

Cooper Cox

Joyce Fensterstock

Kathryn C. Graham

Kathryn G. Graham, Vice Chair and Treasurer

Robert C. Graham, Jr., Director Emeritus

Aaron Labaree, Vice Chair and Secretary

Robert Labaree

Elizabeth Lindemann

Dinorah Matias-Melendez

Isaiah Orozco

Foundation Staff 

Stephen A. Foster, President and Chief Executive Officer
Steve is the first President and CEO of The Overbrook Foundation. His career began at the National Institutes of Health in 1974 and has continued, since 1985, within private philanthropy. Between 1997 and joining The Overbrook Foundation in June 2002 he worked as an independent consultant, providing advice to foundations, corporations and individuals on a broad spectrum of programmatic, governance and management concerns. Steve spent twelve years with the Charles A. Dana Foundation; beginning his career in private philanthropy at Dana as a program officer in 1985 and, ultimately, serving as the Dana Foundation president.

Steve is Chair of the Steering Committee for the Sunrise Initiative for Human Rights in the U.S., a collaborative donor initiative dedicated to the full realization of human rights in the United States. He also co-chairs the Civil Marriage Collaborative (CMC) a separate donor collaborative focusing on state-based strategies to win marriage equality for same-sex couples. Since its inception in 2005, the CMC has been active in all state-based civil marriage campaigns which have either won the freedom to marry for same sex couples or have successfully defended the freedom to marry from attack.

After graduating from Pennsylvania State University in 1969 with a B.A. in Political Science, he served as a volunteer for two years in the United States Peace Corps in Sierra Leone, West Africa. Upon returning he studied at Northwestern University where he earned his M.A. in history (African Studies) in 1973, graduating Magna Cum Laude. He went on to successfully complete the National Institutes of Health’s Management Intern Training Program in 1975.


Daniel R. KatzSenior Program Director of the Environment Program

Daniel Katz is the Senior Program Director at The Overbrook Foundation, where he directs the Foundation’s environmental giving in the areas of international biodiversity coservation and sustainable consumption. He is the Board Chair and former president of the Rainforest Alliance, an organization he co-founded in 1986 at the age of 24. At Overbrook, Mr. Katz created Catalog Choice – a web-based service that offers an easy way for millions of users to stop the flow of unwanted catalogs into their mailboxes. He is currently spearheading initiatives to build a stronger, more inclusive and equitable environmental movement in the United States.

A former Kellogg Foundation National Leadership Fellow, Mr. Katz has served as a consultant, adviser and board member for numerous organizations including People for the American Way, and the Nespresso Sustainability Advisory Board. He is a member of the Council on Foreign Relations and the editor of two volumes: Why Freedom Matters: The Spirit of the Declaration of Independence in Prose, Poetry and Song (Workman) and Tales from the Jungle: A Rainforest Reader (Crown).

Mr. Katz is a frequent speaker at colleges and universities around the country on the topics of the social entrepreneurism, rainforest conservation, sustainability, and leadership. He received his MBA from the Stern School of Business, New York University where he recently became an Adjunct Professor. Katz studied Chinese linguistics in Wuhan, the People’s Republic of China. He lives in New York City with his wife, Maggie, and their two children.


Mary J. GreccoChief Financial Officer

Mary began working with The Overbrook Foundation in 1989 when she joined Overbrook as its Assistant Controller, and she now serves as both Grants Manager and Chief Financial Officer. Prior to joining Overbrook, she worked in public accounting at Coopers & Lybrand, now PriceWaterhouse Coopers, in both the audit and executive tax departments. Mary is an active member of the American Institute of Certified Public Accountants and the New York State Society of CPAs. She graduated summa cum laude from Manhattan College where she earned a B.S. with a dual major in Accounting and Computer Information Systems.


Sarah AbelowHuman Rights Program Officer

Sarah Abelow joined The Overbrook Foundation starting as the Human Rights Program Assistant in 2011. Since that time, she has assisted with the Foundation’s human rights grantmaking and other administrative tasks at the Foundation. Most recently, she has been working as a program officer to support grantmaking around reproductive justice, defending human rights defenders and the reform of the role of money in our democracy. She is a former CoreAlign Generative Fellow through which she examined the role of philanthropy in supporting innovation particularly in the reproductive health, rights and justice movements.  She joined Overbrook after attending Pomona College in Southern California where she studied History and French and worked with several non-profit organizations.


Benji Jones, Environment Program Associate

Benji joined the Foundation in May to focus on advocacy, innovation and new projects in the Environment Program. Prior to joining the Foundation, Benji was a freelance environmental writer and a research analyst with Global Forest Watch at the World Resources Institute. Benji received an M.S. in Biology from Stanford, where he researched the impacts of land use on terrestrial biodiversity, and a B.A. from Washington University in St. Louis. In his free time, he enjoys indoor cycling to club music, searching for New York's best scone and, of course, spending time in the environment.


Katie GwathmeyEnvironment Program Assistant

Katie Gwathmey assists with the Foundation’s environment grantmaking as well as with various administrative tasks. Prior to joining Overbrook, she worked for a short time as a special project assistant at the Open Space Institute, a Northeast based land conservation organization. In addition, for two years she served as a senior consultant at Navigant Consulting within the Life Science practice working with biotech, pharmaceutical, and medical device clients. She graduated from Davidson College in 2014 with a B.S. in Biology and concentration in Environmental Studies.


Nikole D. LaVelle, Grants Manager

Nikole LaVelle joined Overbrook Management Corporation, Overbrook's Family Office & Investment Advisers in 2007 and has been working with the Foundation in various capacities since her arrival. In 2012 she moved to the Foundation, where she assists Mary Grecco with grants administration, office operations and website development. She graduated from Pitzer College with a concentration in International Intercultural Studies and is originally from El Paso, TX.

For general inquiries, please refer to our contact page.