Our Team

Mark Grashow, President, Co-Founder

Mark taught mathematics at Abraham Lincoln High School in Brooklyn for 35 years. He was the advisor to the school’s service club, coached the swimming team, served as union leader, ran the GED program and advised the Rainbow Alliance. Mark was twice recognized as High School Teacher of the Year for Brooklyn and Staten Island Schools. He retired from teaching in 2001. In 2003, Mark and his wife, Sheri Saltzberg, co-founded USACF. Mark has published several books, travels extensively, and is a nationally ranked swimmer.

Sheri Saltzberg, Executive Director, Co-Founder

Sheri began her public health career as the Director of Services Programs for the Medical and Health Research Association (now known as Public Health Solutions). She worked as the Founding Director of the Brooklyn Pediatric AIDS Network and was the Founding President of the AIDS Policy Center for Women, Children and Families (APC). Sheri and her husband Mark live in Brooklyn.

Alexander Grashow, Director

Alexander is the Chief Executive Officer of Cambridge Leadership Associates and co-authored The Practice of Adaptive Leadership. He is a leading expert in helping organizations and communities thrive and he consults to and works with CEOs, senior managers, and top teams in many Fortune 500 companies and international aid organizations. Alex has been on the executive education faculty at New York University, Duke Corporate Education and Harvard University. He is a member of the Advisory Board of the Clinton Global Initiative, has been published in Harvard Business Review and had a column in the Washington Post. Alex lives with his family in Brooklyn, NY.

Andy Hughes, Director

Andrew Hughes is Senior Vice President, Director of Production and Design, Knopf Doubleday Group, a division of Penguin Random House, where he has worked for almost forty years. He has taught courses at the New York University, CUNY, and Columbia Publishing programs, and is on the board of Thomson-Shore Book Manufacturing.  He has been on the board of USACF since its inception in 2003, and is the founder of its Caring Carpenters program, visiting Africa annually to build and repair furniture, paint schools, and train students and volunteers in the program.  He lives in Manhattan and Callicoon, New York. 

Bob Rollins, Ed Tech Specialist, Director

Bob taught grades 4,5, 6, and 7 at Bay Area schools for 23 years. He has a passionate interest and commitment to using educational technology to inspire learning, imagination and innovation. Since becoming USACF’s Ed Tech Specialist in 2016, Bob has worked hard to grow USACF’s Bridge Project in South Africa and Zimbabwe. Bob cherishes the opportunities to bring educational tools and resources to so many severely under-resourced children and classrooms. A born New Yorker, he lives in Oakland, California.

Dominic Muntanga, Director

Dominic Muntanga is Special Projects Advisor to the Minister of Education, Sport, Arts and Culture in Zimbabwe. He is founder of the Council for Zimbabwe and one of the Co-Directors of Kalai Foundation. Prior to joining the Ministry of Education, Dominic was a consultant to the World Bank. He sits on the board of the US Foundation for the UWC Atlantic College.

Paulo DeSousa, Director

Paulo has over 17 years experience working in communications, media and event planning.The highlight of Paulo’s performing career was his principal role, opposite Nicole Kidman, in Sydney Pollok’s internationally acclaimed thriller The Interpreter. Paulo speaks Portuguese, Spanish, French, and Italian and is certified in Intercultural Exchange by the Government of Portugal. He was born in Zambia and lives in L.A. where he works with Universal Music Distribution’s Latin Division.

Escar Kusema, Director

Escar is a teacher of Neuroscience, Biology and Global Health & Sustainability. She is the Founder and CEO of Dumela, which works to involve college and high schools students with research, advocacy and providing sustainable solutions to struggling communities in post-conflict nations. Escar provides advisory services to emerging female social entrepreneurs in the Zimbabwean non-profit sector. She is a cofounder of Backpacks for the Zimbabwe Initiative and the ABI Scholarship Fund for Women. 

Beth Dembitzer, Director

Beth has produced and directed news and documentaries for ABC, CNN, PBS and international television, and award-winning advocacy and marketing campaigns. Beth’s independent and foreign feature film executive-producing credits include Today’s Special (Netflix), Magic Hour (Argentina), Happy New York (Poland) and Letters to America (Bulgaria). Beth is currently directing a documentary on Deogratias Niyizonkiza and the community he created to bring about peace, healing, and reconciliation in post-war Burundi and serves as Consulting Producer on Somaliland, a film on the power of education to change a society recovering from war.  She is Founder and Curator of Social Cinema @ New America, a documentary film series with New America where she is a fellow.