Board & Staff

Board of Directors

Former Senior Assistant Dean for Administration, Santa Clara University School of Law; former Assistant Dean, Santa Clara University School of Engineering; former Executive Director, Overseas Studies Program, Stanford University; former Assistant to President Gerhard Casper, Stanford University; former Associate Provost for Program Development and Facilities Planning, Stanford University; resident of Menlo Park.

Director Product Marketing, Blue Coat Systems; former Senior Marketing Manager, Fortinet, Inc.; former Senior Marketing Manager, Cisco Systems, Inc.; former Product Manager, Apple Computer; member, Steering Committee, Neighbors Against Irresponsible Logging; resident of Los Gatos.

Senior Director of Housing and Community Development, Silicon Valley Leadership Group; Board Member, Santa Clara County League of Conservation Voters; Board Member, Silicon Valley Housing Trust; former Treasurer, Silicon Valley Young Democrats; former Community Outreach Specialist for Midpeninsula Regional Open Space District, resident of Sunnyvale.

Executive Director, Jasper Ridge Biological Preserve, Stanford University; former Resident Director, Sweeney Granite Mountains Desert Research Center, University of California; board member, Organization of Biological Field Stations; resident of Menlo Park.

President and Chief Executive Officer, Focus Business Bank; member, Board of Directors, First Community Housing; member, Global Leadership Council, College of Business, San Jose State University; member, Rotary Club of San Jose; Trustee, Symphony Silicon Valley; Director, The Tower Foundation of San Jose State University; resident of San Jose.

Former Vice President, AWD Technologies; former Quality Assurance Manager, Guy F. Atkinson Company; President, Myrtle L. Atkinson Foundation; Former President, Friends of Menlo Park Library; resident of Menlo Park.

Graduate school professor, Public Administration Program, San Jose State University; former elected Treasurer, County of Santa Cruz; former Speaker pro Tem, California Assembly (Keeley authored the two largest voter-approved park and environmental bonds in the nation’s history, totaling $4.6 billion); former member, Santa Cruz County Board of Supervisors; corporate officer, National Marine Sanctuary Foundation, Washington DC; board member, Working Partnerships USA; board member, Community Foundation of Santa Cruz County; teacher, Osher Lifelong Learning Institute, CSU Monterey Bay; lecturer, Panetta Institute of Public Policy; resident of Santa Cruz.

Board Member, Coastside State Parks Association; Docent, Ano Nuevo State Park; Board President, Redwood Meadows Ranch Homeowners Association; former Leadership Team, Mid-Peninsula Democratic Volunteer Center; former hospital administrator and health policy analyst; resident of Menlo Park and Bonny Doon.

Volunteer Project Manager, The Trust for Public Land; former Vice President of Business Development, HomeGain; former Director of Business Advisory Services, US-China Business Council; resident of San Francisco.

Chairman and owner, Intero Real Estate Services; Founding Director, Heritage Bank of Commerce Board of Directors; Board Member, Trulia; Former President and CEO, Franchise Group of Cendant Corporation; Former President and CEO, Century 21 Real Estate Corporation; Former President and CEO, Contempo Realty, Inc.

President, Putnam Automotive, Inc.; Former President, Burlingame Chamber of Commerce; resident of Woodside.

Former Senior Vice President, Cornish & Carey Commercial Real Estate; former owner, Cornish & Carey Residential Real Estate; former President, Woodside High School Foundation; current volunteer, Gulf of the Farallones National Marine Sanctuaries and Santa Clara County Audubon Society; resident of Woodside.

Vice President, Venture Investing at Citi Ventures; former investment professional at Bessemer Venture Partners and Longworth Venture Partners; former cofounder and head of product at a tech startup; hiking and camping enthusiast; resident of Redwood City.

Partner, Wyckoff, Ritchey and Shanle; member and active hike leader, Sierra Club; resident of Santa Cruz.


Sara Barth

Sara Barth, Executive Director, (650) 949-1453 x201

Sara Barth joined Sempervirens Fund in 2016 after 12 years working in leadership positions at The Wilderness Society (TWS), most recently as Senior Regional Director for the Pacific and Southeast regions. Sara oversaw TWS efforts to protect wildlands around the country, including successfully preserving over 1 million acres of federal land in California, and she completed a major climate adaptation project for the organization. Prior to TWS, Sara served as an environmental advisor to U.S. Senator Barbara Boxer in Washington, D.C. Her other professional experience includes working for the National Wildlife Federation and the World Wildlife Fund on U.S. land and wildlife policy. Sara holds a B.A. in Biopsychology from the University of Pennsylvania and an M.S. in Environmental Science from the University of Michigan’s School of Natural Resources and the Environment.


Patrick Gibbons, Chief Financial Officer, (650) 949-1453 x202

Patrick Gibbons joined Sempervirens Fund in 2014 and is responsible for all financial and accounting functions, human resources, information technology and office management. Before coming to Sempervirens Fund he worked as finance director at various local nonprofit organizations including The Hearing and Speech Center of Northern California, Meals on Wheels of San Francisco, San Francisco Parks Trust, Strybing Arboretum Society and Haight Ashbury Free Clinics. Patrick is a native of San Francisco and has a B.S. in Accounting from San Francisco State University.

image of Michael Kawalek

Michael Kawalek, CFRE, Director of Development, (650) 949-1453 x209

Michael Kawalek joined Sempervirens Fund in 2013, and he currently serves as the Director of Development. Before coming to Sempervirens Fund, he worked as Director of Development and Finance for Bay Area Wilderness Training and as a fundraiser for the Oakland Museum of California, the San Francisco Zoo, and KQED. Michael earned his Certified Fund Raising Executive (CFRE) credential in 2015, serves as a Board Member for the Golden Gate Chapter of the Association of Fundraising Professionals and is a Bay Area native.

image of Laura McLendon

Laura McLendon, Director of Land Conservation, (650) 949-1453 x206

Laura McLendon is the Director of Land Conservation at Sempervirens Fund. She joined Sempervirens in 2006, and has spent the majority of her career working on land conservation projects that protect and restore redwood forests in the Santa Cruz Mountains. As Director of Land Conservation, Laura oversees all land acquisition and strategic conservation projects, as well as the stewardship and care of all of Sempervirens’ properties and conservation easements. Previously, Laura worked at The International Ecotourism Society in Washington, D.C., and in the environmental education department of the Santa Barbara Zoological Gardens. Laura holds a B.A. in Human Biology and M.A. in Anthropological Sciences with concentrations in environmental science, policy, and resource management from Stanford University. Laura is a native Californian, professional visual artist, and currently resides in San Francisco, California.

Portrait of Ryan Masters

Ryan Masters, Director of Communications, (650) 949-1453 x207

Ryan Masters joined Sempervirens Fund as Communications Director in July 2017. Born and raised in the Santa Cruz Mountains, Ryan grew up tromping through chaparral and redwoods; and surfing the Central Coast from Big Sur to San Francisco. He is a communications professional and writer with decades of experience contributing to regional and national publications, including the Monterey County Herald, the Monterey County Weekly, Santa Cruz Sentinel, Hilltromper, Surfer and The Surfer’s Journal. He has taught environmental writing at CSU Monterey Bay, served as the inaugural poet-in-residence for the city of Pacific Grove, and holds an MFA in writing from the University of Alaska Fairbanks.

Portrait of Barbara Lamb Hall

Barbara Lamb Hall, M.S. CFRE, Associate Director of Development, (650) 949-1453 x203

Barbara Lamb Hall is the newest team member, serving as Associate Director of Development. Before joining Sempervirens Fund, she worked as Development and Underwriting Mgr. for KCSM, a division of the College of San Mateo, and prior to that was Development Director for Village Enterprise Fund. Barbara served as a Board Member for Each One Reach One, and on the AFP Silicon Valley Board as VP of Programs. She is originally from upstate New York, and has traveled widely in the country and abroad. She loves to hike and run in Bay Area parks. Barbara holds a Master’s degree from Tufts University.


Ann Blanchard, Annual Giving Manager, (650) 949-1453 x205

Ann Blanchard joined Sempervirens in 2012. Ann has over 10 years in non-profit service working in the social services field assisting adults with developmental disabilities. A Bay Area native who grew up camping at our local state parks, she holds a B.A. in Art History from the University of California, Davis and a B.F.A. in Visual Communications and Graphic Design from the International Academy of Design and Technology, Sacramento.

Ian Rowbotham

Ian Rowbotham, Land Stewardship Manager, (650) 949-1453 x208

Ian Rowbotham joined Sempervirens Fund in 2016 as the Land Stewardship Project Associate. He holds an M.S. in Earth Systems from Stanford University, with a focus on sustainable resource use. Before coming to Sempervirens Fund, he conducted research on the effects of climate change on forests of the Sierra Nevada and the movement and physiology of white sharks and bluefin tuna.

portrait of Lauren Chavez

Lauren D. Chavez, Project Manager, (650) 949-1453 x215

Lauren D. Chavez joined Sempervirens Fund in June 2017 as Project Manager for the new entrance to Castle Rock State Park. She holds a BA in Urban Studies and MS in Civil & Environmental Engineering from Stanford University, with a focus on sustainable communities, green buildings, and construction management. Lauren previously worked in residential construction and served as inaugural managing director for We Players, launching and establishing the Bay Area site-integrated theatre troupe as an arts and education nonprofit. She works as a healer and nature awareness and rites of passage mentor, and is an active member of The Episcopal Church of St. John the Evangelist in San Francisco.

HollyHolly Grench, Donor Relations Coordinator, (650) 949-1453 x210

Holly Grench joined Sempervirens Fund in 2017 as a Development Associate and assumed the role of Donor Relations Coordinator in 2018. She holds a B.A. in American Studies from Stanford University with a focus on nature and the environment in American culture. She grew up attending summer camp in the Bay Area where she first backpacked the Skyline-to-the-Sea Trail and fell in love with California’s redwoods.

Alyssa Gillooley, Executive Assistant, (650) 949-1453 x200

Alyssa Gillooley joined Sempervirens Fund in early 2018 as the Executive Assistant to Executive Director Sara Barth. With over 20 years in the non-profit sector, Alyssa has extensive experience in administration and project management and has a BA in Applied Economics from the University of San Francisco . Her earliest memory of the redwoods was on a vacation to California as a girl. “I remember how majestic the redwoods seemed at that time and I am still in awe of them today,” she says.

Science Advisory Panel

  • Philippe S. Cohen, Ph.D., Chair
  • Anthony R. Ambrose, Ph.D.
  • Nona Chiariello, Ph.D.
  • Gage Dayton, Ph.D.
  • David Freyberg, Ph.D.
  • Alan Launer, Ph.D.
  • Virginia Matzek, Ph.D.
  • Lisa Micheli, Ph.D.
  • Wallace “J” Nichols, Ph.D.
  • Scott Stephens, Ph.D.
  • Christopher C. Wilmers

Founding Directors

  • Andrew P. Hill
  • George C. Collins
  • Howard J. King
  • Claude A. “Tony” Look
  • Dorothy Varian

What does the Royal Air Force’s victory in the Battle of Britain have in common with the establishment of Castle Rock State Park? Russell Varian. Learn more about the integral role this Silicon Valley hero and his widow, Dorothy Varian, played in the history of Sempervirens Fund on the Sempervirens Fund Podcast.