Pepperwood’s board of directors and staff bring more than 75 years of combined onsite experience to their positions.
Pepperwood Foundation Officers
Herb Dwight
Co-founder & Chairman, Pepperwood Foundation
William Dwight
Treasurer, Founder & CEO, Famzoo.com
Herb Dwight
Herb Dwight attended Stanford University, receiving a BSEE in 1953 and an MSEE in 1959. He was Founder, President and CEO, of Spectra-Physics (San Jose, CA), the first commercial laser company to be formed after the invention of the laser (1961-1988). He was President and CEO of Superconductor Technologies (Santa Barbara, CA), one of the first companies to commercialize newly discovered high temperature superconductor technology (1988-1991). He was President and CEO of Optical Coating Laboratory, Inc. (subsequently acquired by JDSU), the leading producer of optical thin film coatings, fiber-optic telecom components and color-shifting pigments for security applications (1991-1998). He served as Chairman of Optical Coating Laboratory, Inc. (1991-2000).
Herb’s current commitments include: Chairman of the Pepperwood Foundation, a charitable organization dedicated to research and education in land conservation and environmental sciences; member and past chairman of the Board of Overseers, Hoover Institution, Stanford University; member of the board of 10,000 Degrees, a Marin based scholarship organization and chairman of their Sonoma County Advisory Board; member of the Strategic Advisory Board of the Genstar Capital, a private equity firm; member of the President’s Advisory Board at Sonoma State University; and member of the board of Memorial Hospital in Santa Rosa.
Herb is a past Chairman of the Community Foundation Sonoma County, Santa Rosa Memorial Hospital Board, American Electronics Association Board and Stanford Alumni Executive Board. Former trustee of Stanford University.
Herb and his wife, Jane, have two sons and nine grandchildren. His hobbies include golf, fishing, hiking, bicycling, and flying.
William Dwight
Bill Dwight is the Founder and Chief Dad of FamZoo.com. FamZoo, short for “my family is a zoo,” is a Web-based family banking service that helps parents teach kids and teens good personal finance habits through hands-on practice. Parents set up a private, fully customizable “Virtual Family Bank” to manage their children’s earnings, spending, saving, and charitable giving. FamZoo has been featured in The Wall Street Journal, The New York Times, TIME, NPR, the PBS TV Series BizKid$, Doreen Bloch’s book “The Coolest Startups in America”, and best-selling author Bruce Feiler’s book “The Secrets of Happy Families.” In both 2011 and 2013, FamZoo was voted Best of Show at Finovate, the premiere showcase conference for emerging financial technologies.
A graduate of Princeton, Bill has been building software for 30 years in areas as diverse as artificial intelligence, database systems, application development tools, business analytics, distance learning, Internet advertising, online marketplaces, and personal finance. He has held executive product development positions at Oracle Corporation and two innovative Internet startup companies: Netgravity and Elance. Bill founded FamZoo in 2006 to help parents be more effective mentors to their kids for critical life skills like personal finance.
Bill and his wife, Selina, have 5 children and reside in Silicon Valley.
Board Members
Julie A. Kawahara
Founder, Kawahara & Associates
Shannon Bennett, PhD
Chief of Science, CA Academy of Sciences
Paul Downey
Investment Banking Consultant
Elvia Najera Santiago
Environmental Science Professional
David Bradlow
Trustee and Receiver
Mark Dwight
Founder & Owner, Rickshaw Bagworks
Rob Das
Co-Founder, Splunk
David Weber
Independent Business Consultant
Lisa Carreño
President & CEO, United Way of the Wine Country
Julianna Graham
Governance Committee Chair, Senior Advisor, BPM, LLC
Robert Holcomb, PhD
Assistant Superintendent at Santa Rosa Junior College
Julie A. Kawahara
Julie Kawahara has dedicated her life to the public sector, focusing on government, educational institutions and nonprofit service organizations that support individuals and communities to thrive. She has over 25 years of experience in organizational development, strategic planning, program and evaluation design. She is the lead consultant in her own business, Kawahara & Associates, focused on healthcare, education, human services, workforce development and climate justice. Throughout her career, Ms. Kawahara has always been at the forefront of progressive initiatives designed to improve community and system outcomes. Working with larger institutions such as Santa Rosa Junior College, Sonoma State University, California Department of Health Services, Sonoma County Department of Health and Human Services Department, and Sonoma County Indian Health Project, Ms. Kawahara has conducted evaluations, designed and implemented programs, developed policies and procedures and facilitated diverse groups in strategic action planning. One significant project with the Santa Rosa Junior College was to establish a health career center for Latinx students fulfilling the vision of increasing the Spanish-speaking workforce in healthcare for the local hospitals and clinics.
Smaller organizations have also benefitted from Board development and training, strategic planning, fund development planning and improvements to their human resources processes. These include local grassroots organizations such as Los Cien, Positive Images (LGBTQ+), Latino Service Providers, Asian American Pacific Islander Coalition of the North Bay, and the Community Baptist Collaborative.
In 2020, Kawahara & Associates broadened their client base to include organizations focused on climate solutions and environmental justice. The inter-relationship and inter-dependencies of humans and earth’s ability to thrive has become more critical and apparent to even those who are not working in health and environment. Applying her knowledge and experience in the healthcare sector, Ms. Kawahara has easily translated how the human ecosystem is a smaller model of the earth’s ecosystem. Furthermore, natural and man-made disasters have exacerbated the inequities and disparities experience by the poor and communities of color. Ms. Kawahara has been appointed to the Climate Action Advisory Council for the Regional Climate Protection Authority and has recently been appointed to the Board of Directors for Pepperwood Preserve in Sonoma County.
Shannon Bennett, PhD
Dr. Bennett is the Chief of Science and Harry and Diana Hind Dean of Research and Collections. She was the Academy’s first ever Associate Curator of Microbiology, helping broaden the Academy’s research scope to include a dedicated focus on viruses and bacteria. Her specialty lies in infectious diseases that can be transmitted from animals to humans.
From 2004-2011, Bennett was an Associate Professor at the Asia-Pacific Institute of Tropical Medicine & Infectious Diseases, part of the School of Medicine at the University of Hawaii. During her seven years at the Institute, she led a number of research projects on virus evolution, identification, and transmission with funding from the National Institutes of Health. She applies advanced technologies from genomics and bioinformatics to study dengue, hantavirus, influenza, and other viruses, and also bacteria such as leptospirosis and those found in mosquito vectors. She is especially interested in the nature of genetic mutations that give viruses the potential to cause epidemics or switch to new hosts.
Prior to her work in Hawaii, Bennett researched the dengue virus in Puerto Rico and parasitic roundworms in Texas and Vancouver. She received her B.Sc. from McGill University and her Ph.D. in Zoology from the University of British Columbia.
Paul Downey
Paul Downey has been an investment banker for more than 50 years, advising American and international clients on global financing, mergers and acquisitions. Raised in New England, Paul began his investment banking career in New York with First Boston in 1966, following graduation from Yale College and three years in the U.S. Navy. He was a partner with White Weld from 1971 to 1978 in San Francisco and New York, before returning to First Boston as a Managing Director, and as Executive Director of its affiliate, Credit Suisse First Boston. He was based in CSFB’s London headquarters and the New York offices of First Boston for the next ten years, responsible for raising capital through international equity and debt financings on behalf of the firm’s U.S. clients. In 1989, he returned to San Francisco to head the firm’s West Coast banking operations, where he advised large and small clients on financings, mergers and acquisitions. In 1991 he retired from First Boston to open Downey Capital, working primarily with privately-owned U.S. companies on capital structure, financing and M&A. He serves on the board of Seven Hills Group and is a past board member of White Weld, First Boston, CSFB & Flynn Olympic, the Santa Rosa Symphony, Woods Hole Oceanographic Institution, National Repertory Orchestra, and The Keystone Center. He lives with his wife, Hallie Beacham, MD, in Healdsburg, California, where they grow zinfandel. Between them they have six children and eight grandchildren.
Elvia Najera Santiago
Elvia Najera Santiago is an accomplished environmental science professional at the Sonoma County Department of Agriculture, Weights and Measures. Raised in Sonoma County, she is deeply committed to protecting the region’s landscapes, waterways, and agricultural communities.
Elvia holds a Bachelor of Science in Environmental Science and Management from the University of California, Davis. Her focus was on watershed science, and her expertise includes field monitoring, environmental data collection, and regenerative agriculture. She has extensive experience in soil monitoring, agricultural research, pest detection, and promoting regenerative farming practices throughout California and Oregon.
A strong collaborator, Elvia has worked closely with growers, researchers, field teams, and community partners to convert environmental data into actionable solutions for a range of agricultural and environmental challenges. Her work underscores her passion for the intricate relationships among healthy ecosystems, climate resilience, agricultural sustainability, biodiversity, and thriving communities.
Elvia is particularly dedicated to fostering conservation efforts that recognize the essential bond between people and the land, while also creating opportunities for historically underrepresented communities to participate in environmental stewardship.
Having completed the TeenNat program at Pepperwood in 2016, she is enthusiastic about giving back to the organization by leveraging her agricultural and environmental expertise to advance science-based conservation. As a bilingual professional fluent in English and Spanish, Elvia is focused on building a more sustainable and inclusive future for Sonoma County.
David Bradlow
David Bradlow is a trustee and receiver based in the Bay Area. He founded his practice in 1979 and specializes in complex family trust matters, Chapter 11 bankruptcies, receiverships, and out-of-court financial restructurings. His experience spans various industries, with a particular emphasis on commercial and residential real estate, including property management, purchases, sales, leasing, exchanges, renovations, and refinancing.
Mr. Bradlow is the president and CEO of the Lindskog Foundation, a grant-giving organization he established following litigation initiated by the Attorney General of California, during which he was appointed as trustee of the Eva Lindskog Trust. The Foundation provides funding for healthcare, education, and job training for lower-income residents in Marin County.
Currently, he serves on the advisory board of Tikvah, a New York-based think tank and Jewish education organization, and is a member of the board of the Bay Area Bankruptcy Forum. He has also served on the board of the San Francisco Law School, as both a board member and president of the Community Alliance for Special Education, and for over twenty years as the board president of Sterne School, a San Francisco institution for children with learning disabilities.
Mr. Bradlow is a published author, having written articles on a variety of topics, including problem loans, financial restructuring, business strategy, and geopolitics. His work has appeared in numerous publications, including the Journal of Commercial Bank Lending, the American Bar Association Journal, the CPA Journal, Bankers Magazine, the Jerusalem Post, and the Times of Israel.
Originally from South Africa, Mr. Bradlow holds a Bachelor of Commerce degree from the University of the Witwatersrand and an MBA from Stanford University. He has been a U.S. citizen since 1983.
Mark Dwight
Born and raised in Los Altos, California, Mark Dwight is the founder and owner of Rickshaw Bagworks (rickshawbags.com), a San Francisco-based manufacturer of custom messenger bags, backpacks, briefcases, tote bags, and related everyday carry accessories. Prior to founding Rickshaw, Mark was the CEO of Timbuk2Designs (2002 – 2006), another San Francisco-based bag manufacturer. Before he started designing and making bags, Mark spent 20 years working in various Silicon Valley technology companies including, Spectra-Physics, KLA Instruments, Digital Microwave, Kensington, and Cisco Systems (1997 – 2001). Mark is also the founder of SFMade.org, an organization supporting San Francisco-based manufacturers. Mark has served on the Board of Directors of the San Francisco Chamber of Commerce, and the San Francisco Small Business Commission. Mark has a BS in Mechanical Engineering (1982) and an MBA (1989), both from Stanford University.
Rob Das
Rob Das, a California native, is a retired entrepreneur in the software industry. He has over 35 years of experience designing and building real-time data analytics platforms, operating systems, networking infrastructure, group collaboration, and financial information delivery systems. Rob was an early member of the team at Lotus Development Corporation (original inventors of the spreadsheet application), a senior architect at Sun Microsystems, and a senior engineer for a joint partnership between Apple, Hewlett Packard, and IBM. Since the late ’90s, Rob focused entirely on venture capital backed, early-stage companies where in addition to hands-on development, he held the roles of VP of Engineering, Chief Technology Officer, and board member. Most recently, Rob co-founded Splunk (NASDAQ: SPLK) and saw it through a very successful IPO in 2012. Splunk is currently a large, fast growing international company that empowers businesses with Operational Intelligence by collecting, routing, and analyzing huge amounts of real-time data from a multitude of sources. Rob owns a working vineyard, makes wine and olive oil, and generally enjoys good food and friends.
David Weber
Dave Weber retired in 2022 after a distinguished career at Wells Fargo Bank, where he served as the Chief Credit and Risk Officer for Wholesale Banking. In this role, Dave oversaw more than 50% of Wells Fargo’s total assets, managing over $500 billion in loans and other risk assets. His responsibilities spanned credit and risk decisioning for all commercial and corporate banking, asset-based lending, commercial real estate, non-profit, municipal lending, capital markets, and investment portfolio activities.
In addition to his primary responsibilities, Dave managed the company’s workout portfolio of distressed loans, led the agricultural lending analytics team, and directed the Credit Training Program. He was a key member of the Wells Fargo Management Committee, contributing to the strategic direction of the bank.
Throughout his tenure at Wells Fargo, Dave held numerous positions of increasing responsibility, including roles in capital markets, relationship management, and commercial credit. He also served as the president and chief executive officer of the Wells Fargo HSBC Trade Bank, an equity joint venture between Wells Fargo and HSBC Group.
Dave currently serves as the Chairman of the Board and Audit Committee Chair of Fortress Credit Realty Trust, a private commercial real estate lending trust.
Dave holds a B.A. in Economics from Loyola University in New Orleans and an M.B.A. from the Kellogg School of Management at Northwestern University.
In addition to his professional accomplishments, Dave is committed to community service. He serves on the board and finance committee of Catholic Charities of Santa Rosa and has previously served on the boards and finance committees of the Yerba Buena Center for the Arts, the San Francisco Symphony, and the San Francisco Marin Food Bank.
Dave and his wife reside in Healdsburg San Francisco California, and are proud parents of two adult children.
Lisa Carreño
Julianna Graham
Julianna Graham is Senior Advisor, BPM, LLC. Her banking career spans over 30 years with experience in commercial lending, business development, sales management, strategic planning and project management. She also served as CEO of Western Independent Bankers, a community banking member association and is a faculty member of Pacific Coast Banking School at the University of Washington teaching leadership. She graduated from University of San Francisco with a BS in Organizational Leadership and an MBA in Finance from Golden Gate University. She is married, has three daughters and three grandchildren
Robert Holcomb, PhD
Robert Holcomb, Ph.D. is Vice President of Academic Affairs and Assistant Superintendent at Santa Rosa Junior College, a Hispanic-Serving Institution in Northern California. He holds a Ph.D. in Educational Studies with emphasis in Linguistics and Anthropology from Claremont Graduate University, an M.S. in Teaching English as a Second Language, and a B.A. in Spanish Literature and Linguistics from the University of Southern California.
Dr. Holcomb brings extensive experience in academic leadership, accreditation, and equity-driven institutional transformation. His work includes leading successful accreditation compliance efforts, advancing data-informed continuous improvement, and spearheading a Strategic Enrollment Management Plan that produced significant enrollment recovery. Previously, as Dean of Language Arts and Academic Foundations, he led the establishment of a new Ethnic Studies Department, secured a $2.65 million Hispanic-Serving Institution grant, expanded educational access for incarcerated students, and guided major initiatives in curriculum redesign, faculty development, and student success. His leadership is grounded in collaboration, transparency, and a strong commitment to equity and inclusive excellence.
In Loving Memory of Jane Dwight
Co-Founder, Lover of Nature, Protector of Wild Open Spaces
December 30, 1935 - August 13, 2024
Jane was born in Oklahoma City on December 30, 1935, to Elsbeth Violet Rinder and William Edward Reardon. The family moved to Tulsa where Jane attended grammar school and Central High School, class of 1953. She then earned her BA from the University of Colorado in Boulder, class of 1957.
Shortly after graduating from college, Jane met her husband-to-be, Herb Dwight, at the wedding of one of her best friends to one of Herb’s best friends in Tulsa. Jane subsequently took a job as an administrative assistant with the Dow Chemical Company in San Francisco. Herb and Jane were married in Tulsa on July 26, 1958. They lived in Los Altos and Los Altos Hills for 30 years.
While residing on the San Francisco Peninsula, Jane served as an administrative assistant to the Office of Admissions at Stanford University, as a patients’ relations volunteer at the Stanford University Hospital, and as an Appointments Secretary for Ed Zschau’s 1986 US Senate campaign. She served for many years as a docent for the Filoli National Trust for Historic Preservation and as a volunteer for the Environmental Volunteers. She was a member of the Peninsula Volunteers for over 50 years.
The Dwights moved to Santa Barbara in 1988 and to Santa Rosa in 1991. Jane served on the Board of Directors of the Santa Rosa Symphony for ten years. In 2005 Jane and Herb purchased the Pepperwood Preserve from the California Academy of Sciences and gifted it to the Pepperwood Foundation, a public nonprofit organization. Jane served on the Pepperwood Board of Directors from its founding until her death.
In 2012 Jane and Herb founded the Sonoma Scholarship Foundation in partnership with the Community Foundation Sonoma County. The Scholarship Foundation was subsequently merged with 10,000 Degrees, an organization that currently supports the college education of over 4,000 scholars from the lowest income families in eight Bay Area counties. Jane served on the 10,000 Degrees Sonoma County Advisory Board since its inception.
Jane and Herb were equal partners in all their endeavors. They shared the entrepreneurial spirit. Jane’s twinkling eyes, radiant smile, easy laugh, and warm conversation paved the way to enduring relationships and lasting friendships. Her empathy and respect for others was an integral part of her personality.
Jane’s proudest lifetime achievement was the creation of Pepperwood. During its first nineteen years of existence, Pepperwood has blossomed into an enterprise that introduces people of all ages to the wonders of the natural world through its educational programs and advances the frontiers of environmental and conservation science with its research programs.

For Jane, there was no greater reward for her efforts than seeing children's faces, alight with wonder because of what they discovered in nature here at Pepperwood. She felt it a profound privilege to be able to protect Pepperwood into perpetuity and to share it with our community. The void we feel in her loss is great, but it is our privilege to continue in her footsteps. Her legacy is reflected back to us every day here at the Preserve, and our gratitude for having known such a remarkable and kind-hearted woman is immeasurable.
