Board of Directors

Wendy Hoffman, President
DSC_0178_edited-1After a long career in journalism and public relations, Wendy left the fog of San Francisco to settle in Sonoma five years ago. She joined Impact100 Sonoma as a way to get to know the community better. Her participation has led to her involvement in the Sonoma Valley Education Foundation, where she is a member of its board’s program committee. She’s an avid tennis player and plays on Sonoma’s team in a three-county competitive league.

Susan Porth, Treasurer
Susan Porth-LowResMBA in hand, Susan moved to the Bay Area in 1973 and lived in Marin County until 2013 when she had the good sense to move to Sonoma. She pursued a career in corporate finance that includes more than 20 years as a senior financial executive in managed health care.  Susan has served on several non-profit boards, Alumni/ae association boards for her business school and college and as a trustee for her college. Now gainfully unemployed, she enjoys athletic pursuits (especially golf), gardening, and cooking.

Liz Tunney Williams, Secretary
After moving back to Sonoma, Liz met a couple of Impact100 Sonoma members and she knew she wanted to be part of this group.  She has been on the Financial Review Committee ever since.  Liz was a VP at Citibank in NYC, San Juan, PR and San Francisco. She holds a BA from Wellesley College and an MBA from Columbia University.  She has two grown sons and is looking forward to the arrival of her first granddaughter in August. When she isn’t raising money for Santa Rosa Memorial Hospital, she enjoys tennis, gardening, and more recently, golf.

Pam Gilberd, Membership Engagement
PamAfter graduating from Northwestern University, Pam enjoyed a crazy career path: Pan Am flight attendant (Miami); third grade teacher (US Virgin Islands); model/TV spokeswoman (NY, Cleveland, SF); manufacturer of patio market umbrellas (Oakland); author/speaker of three books about women in business; and co-writer with husband, Fred, of a book about their Carmel hands-on house remodel. Pam moved to Sonoma in 2012 to be closer to seven of ten grandchildren and fell in love with the town and its people. Favorite things? Dancing, biking, hiking, creating art, and traveling.

Margaret Grandy, Community Grants
IMG_5564After more than 40 years living in the Middle East, South East Asia, Australia, and England, Margaret returned to the US and settled in Sonoma in 2014. Her portable career abroad included editing, writing, and teaching, and, for the last twenty years, she worked at the American School in London as Director of Admissions and Associate Head of School. A native Californian who received an MA and MLS from UC Berkeley, she is happy to be back in California and loves the vitality and warmth of Sonoma life.

Ann Iverson, Communications 
ann smallAnn moved to Sonoma in 2013 to escape Silicon Valley after a 30-year career in marketing communications and to focus on making sculpture. For nine years, she was a partner with SV2, a social venture philanthropy organization, where she became involved with a number of nonprofits. She joined Impact100 Sonoma to meet like-minded women and continue this work on a more local scale, including mentoring six vivacious 5th grade girls. Ann also enjoys gardening, hiking and skiing.

Debby Kweller, Information Management & Technology
DebbyA recent retiree from a career in the disability insurance and financial management industry, Debby joined Impact100 Sonoma in 2011 to network with other women and support greater collaboration among non-profits. She became familiar with Sonoma Valley Teen Services and joined their board in 2013. With a love of cooking and fine wine, Debby and her husband, Bob, moved to Sonoma Valley in 2001 .They also spend four months each year camping in their Roadtrek Sprinter.

Mary Marcussen, Special Projects
thumb_mm3_pp_1024Mary enjoys her longtime career as a project development, strategic planning, and major grants professional for science museums, universities, and nonprofit organizations nationally. She is a former systematic biologist, educator, and grants manager for the California Academy of Sciences. Mary joined Impact100 in 2010 in order to serve the local Sonoma Valley community where she and her family have lived for more than 30 years. In between work deadlines or various globetrotting adventures, she can be found in the garden, in the kitchen, or in the company of family and friends.

Lynne Lancaster, Grants Review Committees
Lancaster_Lynne smallLynne is a co-founder of BridgeWorks, a company dedicated to bridging generation gaps in the workplace. She is a nationally recognized public speaker and the author of When Generations Collide and The M-Factor: How the Millennial Generation Is Rocking the Workplace. Lynne and her husband moved to Sonoma in 2000 and immediately became involved with local nonprofits. She is a grandmother of two, a hiker and dog lover, and competes on her horse in show jumping. Lynne is a founding member of Impact100.

Hope Nisson, Events
hopeHope was a flight attendant for 40 years, but still found time to volunteer as a fundraiser and event planner for nonprofits. Now retired, that role continues. Hope is a founding member of Impact100 Sonoma and joined the Board as Events Chair in 2014. She feels that Impact100 Sonoma supports her belief that Sonoma is a giving community and a special place to live. A Sonoma resident for 35 years, she also enjoys travel, playing golf, and being with friends and family.

Diana Sanson, Grants Oversight
diana head shot
Originally from Virginia, Diana moved to the Bay Area in 1991 after graduating Duke with her MBA. She is a founding member of Impact100 Sonoma and has chaired or served on a grant review committee every year. She has held positions with numerous nonprofits, with most of her focus on environmental education organizations. She currently lives in Glen Ellen, where she built a rammed earth home in 2009. She and her husband are avid cyclists and XC skiers.

Cam McKinley, Assistant Communications
DSC_0055 (1) copyAfter years of writing, editing and photographing, Cam now attempts to find just one or two perfect words in her naming business, Word Salad. She and her husband moved to Sonoma in 2014 and Cam joined Impact100 right away, to learn about her new community and meet generous-hearted women. Closest to her heart, she is an interfaith minister and has served as a grief counselor, meditation teacher and healing arts practitioner for many years. In Sonoma she has begun to work in the field of Restorative Justice.

Claudia Sims, Impact Grants
DSC_0032In 2002, Claudia and her husband bought what was then a second home in Sonoma.  As remodeling was completed and work-lives were wound down, it became their full-time residence.  Claudia has a 35+ career in welfare casework and employee benefits.  As a benefits consultant many of those years, she became quite experienced at preparing or analyzing benefit plan proposals.  Little did she know that experience would be useful at Impact 100 Sonoma.

Gera Vaz, Membership
Gera VazFor more than 25 years, Gera led results-oriented human resources teams in delivering best-in-class services throughout the United States, Europe, and Asia. As Chief HR Officer for two global law firms, she directed implementation of best practices that resulted in both firms being named to Fortune Magazine’s “Top 100 Companies to Work For.” Gera and her husband took up permanent residence at their Kenwood home in 2015, where she continues to consult while enjoying the views of the vineyards during long conference calls.

Judith Walsh, Governance
JBW photo by Kat 1845A Napa native, Judith is happily retired after a long career as a corporate tax lawyer in San Francisco and the East Bay.  She moved to Sonoma in 2011 with her husband and joined Impact100 Sonoma in 2013 to learn about the local non-profit community and meet like-minded women.  Judith is a board member and Secretary of Sonoma Overnight Support, and volunteers with FISH.  In her free time, Judith likes to read, garden, and cuddle with her elderly rescue cat while enjoying learning to cook with the bounty of produce from our local farmers markets.

To view the 2016-2017 Impact100 Sonoma Org Chart, click HERE.

If you are interested in participating in board work, or know of an Impact100 member who might have interest please contact Judith Walsh at To download a board application form, click HERE

Past Board Members
Annette Lomont and Christine Dohrmann, Co-Founders
Mollie Collins
Beth Aaron
Patti England
Geralyne Mahoney
B.J. Bishoff
Lorraine Ashton
Nancy Bruce
Mirja Muncy
Kathryn Perry
Arlene Curry
Constance Grizzell
Nancy Pollock
Sydney Randazzo
Peg VanCamp
Grace Meeks
Celia Canfield
Cathy Gorham
Jeanne Montague
Ann Reder
Terri Rhodes
Amy Rassen
Judy Scotchmoor