Start Content
normal font sizemedium font sizelarge font size Print Page

Dennis D. Ryan, Board President

Dennis D. Ryan, Board PresidentDennis brings to our board extensive private sector and nonprofit financial and strategic leadership experience along with a passion to serve those in need. Dennis is the past Board President of Buckelew Programs, an organization serving those with serious mental illness in the North Bay.

Whistlestop provides critical services to our community, and it is incumbent upon us to marshal the financial resources to support our mission and to meet the unmet needs of our aging population. Whistlestop serves as the vital link between those able to provide financial resources to such a worthy cause and those older adults in need of our support and services.”

Professional Affiliations

  • CFO – Foresite Capital – venture capital firm
  • Former Board President – Buckelew Programs
  • Member of California Society of CPA’s
  • Former Finance Instructor – St. Mary’s College


  • 30 years experience as an investment, financial, accounting professional
  • CFO – venture capital, private equity and public REIT
  • MBA – The University of Santa Clara
  • BA Economics – University of California, Berkeley
  • Certified Public Accountant – licensed in California

Beth Reizman, Vice President

Beth Reizman, Vice PresidentBeth is Chief Credit Officer at Bank of Marin. She has been a long-time volunteer in her Lucas Valley community. As a member of Bank of Marin’s Executive Management Team, Beth helps set the strategic direction for the bank and has helped contribute to its growth and success over the last 20 years.

Tom Bonomi, Treasurer

Tom Bonomi, TreasurerTom is President and CFO of Price Family Vineyards & Estates (“PFVE”). PFVE and its affiliates own majority interests in Kistler Vineyards, Gary Farrell Vineyards & Winery, Head High, LUTUM and Three Sticks. PFVE and its affiliates also own Durell Vineyards, Gap’s Crown Vineyard, Walala Vineyard and other vineyard properties in Sonoma County, totaling 400 planted acres. Tom is also the Co-Manager of Kistler Vineyards and currently serves on the Pride Mountain Vineyards Board of Managers and the Sonoma State University Wine Business Institute Board of Directors. Prior to joining PFVE, Tom was Managing Director with Global Wine Partners. He started his wine career with Jackson Family Wines. Upon graduating from University of San Francisco, Tom earned his CPA, while working with KPMG.

Fabia Butler, Board Secretary

Fabia Butler, Board SecretaryOriginally from Georgia, and a Mill Valley resident for close to 30 years, Fabia is passionate about giving back to the Marin community. She previously served on the board of Buckelew Programs, acting as board president for three years during an active time of acquisition and executive leadership changes. She was also on the Mill Valley Chamber of Commerce Board and an advisor with National Charity League, helping inspire teenage girls to develop social awareness.

Fabia began her professional career in San Francisco with McCann Erickson, a large advertising agency, followed by sixteen years with Bank of Marin, leading communications, public relations, advertising, and community relations. At Bank of Marin she helped grow the brand as it expanded into markets beyond Marin, specializing in customer and nonprofit partnerships, internal and external communications, corporate events, corporate philanthropy, and employee volunteerism. Most recently she managed corporate communications in the finance department at Kaiser Permanente.

Fabia is married to Geoff Butler, a local architect, and they enjoy hiking Mt. Tam and the Marin Headlands together. They have three grown children, a teacher, an artist, and a product designer.

Cynthia Wuthmann, Board Member

Cynthia Wuthmann, Board MemberCynthia is an executive marketing and branding management professional.  She has managed both for-profit and non-profit marketing and fundraising programs, including the promotion of social marketing missions to create philanthropic contributions through profitable corporate and nonprofit partnerships.  Cynthia currently serves as the Director of Advancement at The Cedars of Marin, responsible for its fund development program, Artist Within store, and marketing and communications outreach to local and national communities.

I believe in Whistlestop’s plan to serve local seniors and their families – I am an enthusiastic champion of intergenerational alchemy and the 1 + 1 = 3 model of participation, support and community engagement for all individuals.  I am excited to support all the wise and creative individuals who Whistlestop serves.”

Professional Affiliations

  • The Cedars of Marin, Director of Advancement
  • Heads-up San Rafael Public Education Foundation, Board member
  • San Rafael Youth Soccer Club, Board Member, Coach, Referee


  • 25 years experience in consumer product entertainment, technology and business-to-business marketing and sales.
  • Successfully raised funds for Big Brothers and Sisters of America, the Nature Conservancy, NPR, Smithsonian, Drawbridge Arts Program, Just Think, HeadsUp San Rafael Education Foundation, City of San Rafael – Pickleweed Community Center, and the Branson School Scholarship Fund.
  • Development and Communications Director at Smuin Ballet, San Francisco

Sharon Jackson, Board Member

Sharon Jackson, Board MemberSharon is an active civic volunteer and leader in Marin’s healthcare community.  Twice elected to the board of the Marin Healthcare District, she provided strong leadership for the return of Marin General Hospital to the people of Marin. Following her retirement from the Marin Healthcare District, she joined the community relations staff of Marin General Hospital where she focuses on community outreach, working through nonprofit and civic organizations.  During her long professional career, Sharon has also served as a healthcare educator and a consultant. As a consultant, she provided strategic planning and change management services to hospitals, clinics and rehab programs. As an Adjunct Professor for USF, she taught graduate students in Healthcare administration.

Whistlestop is sitting right now at the cutting edge of need and opportunity:  Need for services for our burgeoning population of older adults and an insufficient supply of well-located and affordable senior housing, and opportunity to create the wonderful downtown senior center and housing”

Current Professional Affiliations

  • Marin City Community Development Corp. – Advisory Board
  • Marin Forum since, 2006
  • Healthy Marin Partnership, since 2005
  • Marin Women’s PAC
  • Mission San Rafael Rotary – Sergeant at Arms


  • 36+ years experience creating new services and improving older ones in the healthcare arena
  • Marin County Mental Health Board – Past Chair
  • CA Association Local Mental Health Boards – Founder and Past Chair
  • Marin Commission on Women – Past Chair
  • Artisans Gallery, Past Chair

Bob Sonnenberg, Board Member

Bob Sonnenberg, Board MemberBob, who lives with his wife and two sons, is a native of Marin and a fifth generation Californian.

Whistlestop is so important to the community and I wanted to contribute in this way. There are great things on the horizon.”

Professional Affiliations

  • Mill Valley Rotary
  • Estate Planning Council of the East Bay
  • Community Institute of Psychotherapy (CIP), Board Treasurer
  • San Rafael High School Athletic, Board Member
  • San Rafael Transit Tax Committee
  • Society of California Pioneers
  • American Sports Institute, Fundraiser
  • Olympic Club of San Francisco – Athletic House Committee, Chairman
  • Marin General Hospital Capital Campaign
  • San Francisco Federal Reserve Bank Toastmaster’s Club, President
  • Guide Dogs for the Blind Toastmaster’s Club, Current Treasurer


  • MBA-Finance, Golden Gate University
  • BSBA- Finance/Marketing, Colorado University
  • Associate Director of Planned Giving for Guide Dogs for the Blind
  • Financial Consultant for USB Piper Jaffray, Merrill Lynch, and Wells Fargo Securities
  • More than 25 years experience in finance and development