Your San Francisco Bicycle Coalition staff is hard at work representing you on the streets and at City Hall. Become a member of the SF Bicycle Coalition and get this team of advocates working for you!


Margaret McCarthy

Interim Executive Director

Margaret joined the staff in November of 2012. She became a committed urban cyclist while living in Munich, Germany, and moved back to San Francisco determined to keep biking in urban areas. Prior to joining the SF Bicycle Coalition, Margaret managed volunteer communities at educational nonprofits 826 Valencia and at the Bay Area office of Spark, and taught English as a Foreign Language in Poland and Germany. Margaret studied Theater and English Literature at San Francisco State University.  She is thrilled to be working with the SF Bicycle Coalition’s dedicated and energetic members.


Frank Chan

Operations Director

Frank joined in August 2006 as Operations Director. Frank previously worked at Oracle, Extricity, and most recently as Engineering Program Manager for BEA Systems before realizing he enjoyed the ride to and from work more. He now wants every street in this city to be bikeable for his people. After growing up across the bay in Hayward, Frank graduated from the Massachusetts Institute of Technology with BS and MS degrees in computer science. Email Frank.


Brian Wiedenmeier

Development Director

Brian has been SF Bicycle Coalition’s Development Director since May 2014 and a member since 2007. He brings almost a decade of nonprofit resource development and management experience to the job, including leadership roles at ODC and Performing Arts Workshop. A passionate advocate for better bicycling in San Francisco, he has worked for safer streets in his SoMa neighborhood and beyond. Brian holds an MPA from San Francisco State University and a BA from the University of Minnesota. Email Brian.


Chris Cassidy

Communications Director

Chris works to share the SF Bicycle Coalition’s exciting projects with everyone who will lend an ear, eye or click. He joined the team after five years consulting with progressive nonprofits, campaigns and social ventures. Chris moved to San Francisco in 2005 and earned his J.D. from U.C. Hastings in 2008. That same year, Chris worked on a campaign to increase affordable housing in Bayview-Hunters Point. He has since worked to advance reproductive rights, diversity in the tech industry and civil rights across the country. When he’s not working or biking, Chris likes to garden, hike and grill with family and friends. Email Chris.


Janice Li

Advocacy Director

Janice joined the staff in October 2013 as Community Organizer and has been Advocacy Director since December 2015. She is an East Coast transplant, having spent time at PUSH Buffalo focusing on grassroots leadership and critical education around issues of affordable housing and community development. As an Outer Sunset resident, you might catch her leisurely riding through Golden Gate Park most mornings. Email Janice.


Anna Gore

Membership Manager

Anna has a background in technology and environmental planning, as well as a passion for cycling. Prior to moving to San Francisco, she served on the board of BikeAthens and Georgia Bikes!, and taught urban cycling classes as a League Cycling Instructor of the League of American Bicyclists. Since moving to San Francisco in 2012, Anna had worked as an intern at SPUR, led Team Greenbelt Alliance on the California Climate Ride, and has worn several hats at the San Francisco Bicycle Coalition including Database Assistant, Interim Volunteer Coordinator, and Bicycle Education Instructor. Anna earned her Master’s of Environmental Planning and Design from the University of Georgia. Email Anna.


Nancy Buffum

Family & Schools Program Manager

Nancy  is a long-time San Francisco resident with a background in cooperative and consensus-based organizations, community development and nonprofit management. She has volunteered and coordinated volunteers for youth and families in public schools, arts and recreation programs and grassroots advocacy groups in San Francisco, Marin County, and Brooklyn, New York. She is passionate about strengthening community and safety in the streets, parks and public spaces of San Francisco for people of all ages. Email Nancy.


Julia Raskin

Community Organizer

Julia joined the staff in March of 2016 as a Community Organizer with our Advocacy Team. Originally from New York, she recently moved to the Bay Area after working for the New York City Parks Department, engaging communities around the redesign of public parks. With a background in Urban Planning, she is particularly interested in how people can shape the cities in which they live. She loves long bike rides, especially through the Presidio and along Ocean Beach. Email Julia.


Tracy Chinn

Development Manager

Tracy joined the staff in September 2011 as the Development Associate. She has several years non-profit fundraising experience and previously worked for La Casa de las Madres, a domestic violence shelter and service provider. She earned her BA in Sociology from UC Davis where she was first introduced to urban cycling. Tracy now rides her bike almost everyday, having traded Davis’ flat roads for San Francisco’s hills. Email Tracy.

Susan Gallentine

Susan Gallentine

Event Planner

Susan joined the staff in May 2016 as Event Planner. Susan was first hooked on biking when she needed a safe way to get home after working late nights in the hotel industry. Her past work includes managing a wide variety of events including fundraisers, weddings, conferences, a lavish ball for a prince and everything in between for Fairmont Hotels and most recently for the Presidio Trust. She earned her B.S. in Hospitality and Tourism Management from Purdue University. Susan enjoys running, hiking, picnics and most any activity that takes place outdoors. Email Susan.

Kelsey Roeder

Kelsey Roeder

Membership Assistant

Originally from Auburn, California, Kelsey has been a San Francisco resident since 2008. She became a member of the SF Bike Coalition in 2015, and joined our staff in 2016 as the Membership Assistant. Prior to this role, she was an environmental educator at the San Francisco Department of the Environment, where she taught young students how to create more sustainable schools. Kelsey holds a B.A. in Environmental Sustainability and Social Justice from San Francisco State University. Email Kelsey.


Erin Durkee

Technology Coordinator

Erin supports and trains the staff, interns, and volunteers on the organization’s database and other technologies. Previously, Erin was Membership Manager and Technology Operations Manager at San Francisco Beautiful.  Erin has also been sales staff, bike fitter, and buyer at Huckleberry Bikes and Sports Basement. Email Erin. 


Janelle Wong

Operations Manager

Janelle handles our bookkeeping, financial reporting and budgeting, contracts, human resources, and office management.  Before joining the staff, Janelle spent more than a decade in public accounting, both for accounting firms and in-house while biking to school with her sons.  Janelle is a Pacific McGeorge School of Law juris doctor. Email Janelle.


Francisco Grajales

Program Coordinator

Francisco coordinates the Valet Bicycle Parking Program to park bikes at dozens of events throughout San Francisco. Before joining our staff, Francisco spent over seven years working in college student affairs. Email Francisco. 


Janelle Phung

Family and Schools Coordinator

Janelle joined the staff in July 2014 as Family and School coordinator with the Safe Routes to School Program. She had two and a half years prior experience working with San Francisco Department of the Environment. Among her achievements were success in neighborhood and business community outreach for the San Francisco landfill initiatives, recycle and zero waste programs. She has volunteered for nonprofit community program of the Chinese New Comers Service assistance for their tax returns with the low-income residences programs for seven years. Email Janelle.


Libby Nachman

Program Coordinator

Libby joins the staff as a Midwest transplant, proud to call both Kansas City (where she grew up) and Minnesota (where she lived for five years) home. She first led volunteers in an environmental education program at Carleton College before heading off to South America to become a volunteer herself. Although she’ll miss the seasons and charm of the country’s midsection, Libby is excited to bike year-round and work with the SF Bicycle Coalition’s amazing volunteers. Email Libby.


Charles Deffarges

Bicycle Parking Coordinator

Charles joins the staff as a San Francisco native and bike enthusiast. Before moving back to San Francisco, he studied at Occidental College in Los Angeles where he advocated for increased bike infrastructure and developed a bike-sharing program on campus. Charles will be making San Francisco a better place to ride one rack at a time as our new Bicycle Parking Coordinator. Email Charles.