Senior Staff

David Lewis, Executive Director
As Executive Director of Save The Bay since 1998, David Lewis has been San Francisco Bay's top advocate for more than a decade. Under his leadership, Save The Bay stopped San Francisco International Airport's plan to pave more of the Bay for runways, and has taken on industry giants Cargill Inc., the American Chemistry Council, and serious Bay polluters. David has also testified before Congress on oil spill prevention and restoring Bay wetlands to combat the impacts of climate change. David was born and raised in the Bay Area, and prior to joining Save The Bay, he devoted 14 years to work for nuclear arms control in Washington, D.C., including in the U.S. Senate, and also worked on election campaigns across the country. He holds a B.A. in Politics and American Studies from Princeton University and is still trying to catch up to his daughters on the ski slopes.

Donna Ball, Habitat Restoration Director
Donna brings over 10 years experiences as a salt marsh ecologist on the West Coast to Save The Bay, where she currently guides the Habitat Restoration Team in providing on-the-ground community-based habitat restoration programs utilizing over 5,000 volunteers annually.   Previously, Donna worked at H. T. Harvey & Associates as a senior restoration ecologist working on a variety of large and small-scale tidal restoration projects throughout San Francisco Bay.  She holds a M.S. in Environmental Science from Western Washington University, with a focus on Marine and Estuarine Ecosystems.  

Betsy Cardis, Director of Major & Planned Giving
Betsy has come to Save The Bay with ten years of fundraising experience, including Earthjustice, UC Berkeley, the Haas School of Business and UC San Francisco School of Medicine. She is focused on continuing the growth of our Major Gifts program (defined as gifts of $5,000 or more) by enhancing our stewardship efforts and building relationships with Save The Bay’s loyal supporters. Betsy also oversees our Legacy Society and planned gifts, which consist of bequests made to Save The Bay through a will or trust, gifts of property, real estate, and other charitable giving vehicles. An Oakland native, Betsy studied Environmental Science and Psychology at UC Berkeley. She also holds a Master’s degree in Culture and Spirituality from Holy Names University, and she is an ordained Interfaith Minister through the Chaplaincy Institute in Berkeley.

Robin Erickson, Director of Finance and Administration
With 13 years of experience in non-profit administration, Robin has been responsible for overseeing Save The Bay’s finances, human resources, facilities, and computer systems since 2005. Prior to joining Save The Bay she served as Fiscal Manager for Emergency Shelter Program, Volunteer Manager for Environmental Volunteers, and Camp Director for the City of Oakland’s Touch The Earth Day Camp. She earned a B.A. in International Relations and Japanese from UC Davis.

Stephen Knight, Political Director
Stephen oversees Save The Bay's policy initiatives focusing on Bay fill, pollution prevention and securing funding for the restoration of 100,000 acres of healthy Bay wetlands. An honors graduate of Yale University and U.C. Hastings College of the Law, Stephen has extensive experience in legislative, media, and grassroots advocacy and campaign work. Prior to joining Save The Bay in 2007, Stephen was Deputy Director and co-founder of the Center for Gender & Refugee Studies, an internationally-recognized refugee rights organization. He has both teaching and practice experience in the areas of immigration and civil rights law, is the author of numerous legal publications, and has clerked for a justice of the Supreme Court of Hawai'i.

Janine Kraus, Chief Development Officer
Janine brings more than ten years of non-profit management and development experience to Save The Bay, where she designs and implements a comprehensive fundraising strategy to significantly grow our resources to advance our programs. She comes from the Coral Reef Alliance where she led the charge to increase major giving by strengthening the Board of Directors and crafting a $10 million major gifts campaign. Previously, Janine worked on environmental/political issues at the California League of Conservation Voters. Janine was educated at UC Santa Cruz in Environmental Studies and interned with The Nature Conservancy. In 1997, she helped start the Young Nonprofit Professionals' Network (YNPN). She was selected as one of the first fellows to attend the Executive Program for Nonprofit Leaders at the Stanford Graduate School of Business in 2001.
Donna Ball, Habitat Restoration Director

Cyril Manning, Communications Director
Cyril Manning leads communications for Save The Bay, with a focus on growing the organization’s constituency, highlighting critical issues facing San Francisco Bay, and driving public engagement in protection and restoration efforts. He oversees public relations, online communications, public outreach campaigns and the Save The Bay brand. He has more than 10 years of communications leadership experience, including at The Bay Institute, Aquarium of the Bay, San Jose State University, UC Berkeley and Children’s Hospital. He can often be found running and riding the Bay Area's fabulous trails.

Donna brings over 10 years experiences as a salt marsh ecologist on the West Coast to Save The Bay, where she currently guides the Habitat Restoration Team in providing on-the-ground community-based habitat restoration programs utilizing over 5,000 volunteers annually.   Previously, Donna worked at H. T. Harvey & Associates as a senior restoration ecologist working on a variety of large and small-scale tidal restoration projects throughout San Francisco Bay.  She holds a M.S. in Environmental Science from Western Washington University, with a focus on Marine and Estuarine Ecosystems.  

Tracy "TJ" Warfield, Director of Information Technology
TJ oversees all of the internal technologies and databases for Save The Bay, focusing on increasing communications capacity, streamlining data, network resilience, and security. TJ has an M.S. in Computer Information Systems and more than 10 years of experience in Information Technologies. With a previous background in Marine Biology, TJ has served as a docent for Friends of the Elephant Seal and a volunteer researcher for Bimini Biological Field Station and NOAA/Scripps. As a certified SCUBA diver since high school, TJ remains passionate about shark diving and is an avid hiker who is proud to call the Bay Area home.

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