Leadership

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Throughout its history, NatureBridge has benefited from extraordinary leadership. From our Board of Directors to our environmental science educators, the entire organization is comprised of leaders in their fields who are strongly committed to our mission.

Board of Directors

Ian Yolles, Chair
Carroll C. Yandell, Vice Chair
Brad C. O’Brien, Treasurer
Susan S. Boren, Secretary
Vera Michalchik, Ph.D., Vice Chair for Education
Dan Abrams
Ananda Baron
Angela Chen
Sophia Danenberg
Linda Fisher
Raoul Goff
James F. Hamill
Lisa Holmes
Robert J. Holmes
Thomas C. Kiernan
Jenny Koehler
Colin le Duc
Kimberly McMorrow
Kevin T. Newman, Ph.D.
Allan J. Prager
Nicole J. Sheehan
Walter Sive
Ben Steele
Liz Valentine

Board Emeritus 
Valerie E. Anders
Garry Brewer, Ph.D.
Linda Brownstein
David "Jay" Flood
Stephen H. Lockhart, M.D., Ph.D. 
Jack Walston

National Park Service Liaison
Martha J. Lee, Deputy Regional Director, Pacific West Region

Regional Boards

  • Yosemite Combined Shape Created with Sketch.

    James F. Hamill, Chair
    Darrin D. Gambelin, Esq., Vice Chair
    Denys K. Duffy, Treasurer
    Stephanie Yu, Secretary
    Matthew A. Baxter, Jr.
    Nancy Dyar, Ph.D.
    Peter Levitt
    Monte S. Meyers
    Emily Pimentel
    Adam Pisoni
    Allan J. Prager
    Stuart Ralston
    Jan Sweeney
    William W. Thompson
    James S. Titus
    Michael Pereira
    Chris Joseph

    National Park Service Liaison
    Cicely Muldoon, Superintendent, Yosemite National Park

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    Alan F. Krepack, Ph.D., Chair
    Anne Baxter
    Meredith Delich
    Greg Haddock
    Courtney Hemphill
    Carroll C. Yandell
    Jack Lapidos
    Gretchen LeBuhn, Ph.D.
    Debra Maltenfort, M.D.
    Patti Marshall
    Diane Neal
    Steven Nelson
    Jordan O’Brien
    Mary Poland
    Jennifer Scott
    Ben R. Toland
    Ivy Archer Winters
    Shane Easter 

    Board Emeritus
    Wilford H. Welch

    National Park Service Liaison
    Laura Joss, Superintendent, Golden Gate National Recreation Area
     

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    Walter Sive, Chair 
    Dipa N. Sudra, Secretary
    Diane Undi-Haga, Development Chair
    Jeffrey Cook, Treasurer
    Laura J. Bailey
    Eric Christensen
    Todd Cota
    Jon Evans
    Rebecca Gates
    Valentin Grasparil
    Ondraus Jenkins
    Rebecca Meissner
    Dorothy Metcalf-Lindenburger
    Chuck Ritter
    Kim Sager-Fradkin
    Craig Smith
    Ed Zuckerman

    Emeritus
    Valerie Anders, Board Chair Emeritus
    Greg M. Moga, III

    National Park Service Liaison
    Sarah Creachbaum, Superintendent, Olympic National Park

    Science Liaison
    Jeff Duda, U.S. Geological Survey

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    Kevin T. Newman, Ph.D., Chair
    Chad Barron
    Aaron Bendikson
    Anna Berzins Forkner
    Seth F. Gilman
    Geoffrey C. Given
    Christopher A. Joseph
    Rachael L. Klein
    Bonnie Solmssen

    National Park Service Liaisons
    David Szymanski, Superintendent, Santa Monica Mountains National Recreation Area
    Ethan McKinley, Acting Superintendent, Channel Islands National Park

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    Barbara Semedo, Chair
    Laura Sigman, M.D., Vice Chair
    Jose Aguto
    Thomas C. Kiernan
    Neil M. Goodman
    Reginald “Flip” Hagood
    Leib Kaminsky
    Alexander Rose-Henig
    Catherine Scott

    National Park Service Liaison
    Tanya M. Gossett, Superintendent, Prince William Forest Park
     

Education Advisory Council

Nicole M. Ardoin, Ph.D., Chair
Vera Michalchik, Ph.D., Board Liaison
Robert B. Blair, Ph.D.
Daniel C. Edelson, Ph.D.
Mary L. Kiely, Ph.D.
W. Andrew Marcus, Ph.D.
Sonia Ortega, Ph.D.

Senior Leadership Team

Phillip Kilbridge, President & CEO
Aaron Rich, Chief Development Officer
Judy Lin, Chief Operating Officer
Mitch Holmer, Chief Financial Officer
Stephen Streufert, Vice President of Education & Pacific Northwest Regional Director
Jen Kidder, Interim Olympic Director
Kristina Rylands, Yosemite Regional Director
Fred Brill, Golden Gate Regional Director
Autumn Saxton-Ross, Ph.D., Mid-Atlantic Regional Director
Laurel Talbot, Director of Human Resources