Members of the Port Washington Watershed Biodiversity Coalition

Current Member Organizations

Coordinating Organization and Directorship – Transition Town Port Washington 501(c)(3) – Transition Town Port Washington 501(c)(3) – David Jakim (Coalition Director; Member, Board of Directors, Transition Town Port Washington) and Margaret Galbraith (Director, Transition Town Port Washington).

Baxter’s Pond Preserve – Baxter’s Pond Foundation 501(c)(3) – Kimberly & John Keiserman (Co-Presidents)

Guggenheim Preserve (since 2025) – Formerly PW Green 501(c)(3). New stewardship organization possibilities pending.

Hempstead Harbor Woods – Concerned Long Island Mountain Bikers – Mike Vitti (President)

William Cullen Bryant Preserve – Nassau County Museum of Art – Jean Henning (Conservation Project Coordinator)

Sands Point Preserve – Sands Point Preserve Conservancy 501(c)(3) – Jeremiah Bosgang (Executive Director)

Leeds Pond Preserve – Science Museum of Long Island (501c3) – Hildur Palsdottir (Member, Board of the Directors) and Kirsten Laird (Executive Director)

Unitarian Universalist Congregation Grounds – Unitarian Universalist Congregation at Shelter Rock – Agnes P. Cwalina (Land Management Ecologist)

Port Washington Monarch Butterfly Alliance- The Monarch butterfly is our flagship and umbrella species— representing the Coalition and Uniting Port Washington - David Jakim (Director)

ReWild Long Island 501(c)(3) – A Long Island Wide Movement for ReWilding - Raju Rajan (Co-Chairman)

Coalition members explore the grounds of the William Cullen Bryant Preserve, Roslyn, observing its five acres of newly established meadow habitats — Fall 2025.