HBBF Staff

HBBF staff group shot
photo of Jennifer Bakkom-Gatzke

Jennifer Bakkom-Gatzke

Administrative Manager

Jennifer brings more than 20 years of administrative experience in both the nonprofit and for-profit world, having worked in international manufacturing, criminal and telecommunications law, politics and recycling. She also serves as the BlueGreen Alliance Office Manager.

photo of Charlotte Brody

Charlotte Brody

National Director

Charlotte is a registered nurse, the mother of two sons, and vice president for Health Initiatives of the BlueGreen Alliance. She has led a Planned Parenthood affiliate and been among the founders of the Brown Lung Association, Health Care Without Harm, the Campaign for Safe Cosmetics, Green for All and Safer Chemicals, Healthy Families.

photo of Sarah Doll

Sarah Doll

Bright Choices Program Director

Sarah is also the National Director for Safer States, a coalition of state-based organizations successfully championing policy and market solutions to protect public health and communities from toxic chemicals. Prior to joining Safer States, Sarah was a program director at the Oregon Environmental Council and worked on Capitol Hill for John Conyers, Jr. (D-MI), ran electoral campaigns and managed transportation projects for the City of Portland.

photo of Ruth Hennig

Ruth Hennig


Ruth is a trustee of The John Merck Fund, where she served as the longtime executive director until 2017. She is also a board member of the League of Conservation Voters Education Fund. Ruth has a track record of catalyzing new organizations and initiatives: over a 30-year career in the environmental field, she has helped launch SmartPower, the New England Grassroots Environment Fund, IssueOne, Baraka Community Wellness and Healthy Babies Bright Futures.

photo of Jane Houlihan

Jane Houlihan, MSCE

Research Director

Jane directs research and science communication programs for non-profit organizations. She is an environmental engineer and prior to joining HBBF served as senior vice president at the Environmental Working Group. Jane pioneers online healthy product guides, including EWG's Skin Deep cosmetic database and HBBF’s Vida Lead in Homes guide. She leads research programs on biomonitoring, drinking water, and healthy food. Jane is among the founders of the Campaign for Safe Cosmetics, and serves on the science board of Breast Cancer Prevention Partners.

Kura Naumoff

Kyra Naumoff

Bright Cities Program Director

Kyra is an environmental health scientist and mother with over a decade of experience in community engagement and exposure assessment. She has lead monitoring and intervention projects in communities suffering from chronic air pollution exposure, both nationally and internationally. She’s also advised small businesses on pragmatic strategies to reduce their carbon footprint. Kyra holds a PhD in environmental health sciences from the University of California Berkeley.

photo of Stephanie Stohler

Stephanie Stohler

Communications Director

A skilled strategic communications professional for over a decade, Stephanie was most recently in the public relations office at the John F. Kennedy Center for the Performing Arts where she successfully developed and led PR campaigns for national and international productions, used effective digital strategies and expert strategic messaging and cultivated relationships with key members of the media. She holds a master’s degree from Georgetown University in public relations and corporate communications.

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