Staff

Cathy M. Weiss
Executive Director

Cathy Weiss took the helm as executive director of Stoneleigh Foundation in August 2010. A recognized expert in philanthropy and public policy, Cathy has more than twenty years of leadership experience in family foundation management, strategic planning, organizational and resource development, philanthropic collaboration and research. Before joining Stoneleigh Foundation, she was senior consultant with The Burd Group, executive director for Claneil Foundation, and program officer for the Rockefeller Family Fund and The William Penn Foundation. Cathy was also finance director for Governor Edward Rendell’s first gubernatorial campaign, and served as assistant to Mayor Ed Koch of New York and Mayor W. Wilson Goode of Philadelphia.  

Diana Aubourg Millner, MCP
Program Officer

Diana has extensive experience in grantmaking, public policy, and advocacy.   She has spent the bulk of her career working on behalf of vulnerable children, both domestically and abroad.  At the Stoneleigh Foundation, she oversees the Emerging Leader Fellowship program and has a focus on cross-systems work in the juvenile justice field.  Prior to joining Stoneleigh, she served as executive director of Save Africa’s Children,  where she led the disbursement of grants to hundreds of grassroots and faith-based organizations serving orphans and vulnerable children in Africa, and a Senior Policy Analyst with Bread for the World in Washington, DC.  Diana holds a holds a Master in City Planning from MIT's Department of Urban Studies and Planning.

Christopher M. Abreu
Communications Officer

Christopher graduated cum laude from the University of Pennsylvania in a degree in English with a focus in Creative Writing. He has an extensive background that ranges from not only writing, but finance, fundraising and technology as well. Christopher has been published or featured in The Daily Pennsylvanian, Wharton Magazine, the Huffington Post, the Philadelphia City Paper, and Philadelphia Weekly. He has a passion for social justice and equality. 

Rona M. Navera
Administrative Officer

Prior to joining Stoneleigh Foundation in 2010, Rona worked as fund development officer at Penn Asian Senior Services and as administrative assistant to a Philadelphia city council person.  She serves on the Board of the Asian American Women's Coalition and is an active member of the Philippine Folk Arts Socierty.  Rona was born and educated in the Philippines.