Contact Us MCBC Staff & Board

Tarrell Kullaway

Executive Director

Tarrell leads MCBC’s team of active transportation professionals and guides the organization as it grows and continues to make Marin a safe and accessible place to ride a bike.

Tarrell comes to MCBC with 25 years of non-profit experience, including seven spent as Senior Director of Development for Cascade Bicycle Club, the nation’s largest statewide bicycle organization. While at Cascade, she grew total annual fundraising income by over 500 percent, enabling the construction of a new headquarters and community gathering space, as well as a “bicycle playground” for inner city youth.

Tarrell holds a BA in Communications from Lewis & Clark College and several advanced certificates in fundraising and non-profit development, including as a Certified Fundraising Executive (CFRE). Contact Tarrell

Sandy Allen

Community Engagement Manager

Sandy joined the MCBC team in July 2021.  She is responsible for assisting with communications, volunteer management, and administration of day-to-day operations of the team. Please contact Sandy for bicycle parking requests and volunteer related questions.

Growing up an Army brat, Sandy has lived all over the United States. Moving to Marin County in 2011 she has enjoyed hiking with her dog, volunteering for Wildcare and cycling all over Northern California. Prior to joining MCBC Sandy owned a jewelry store in Sausalito for nine years, sold real estate in San Diego, managed web services for Total Gym, and worked as marketing director for a corporate relocation company.

Sandy has a degree in Art with a concentration in Photography from San Jose State University.  Contact Sandy

Liz Bernstein

Individual Giving Director

Liz joined MCBC in 2020 as a volunteer on the Major Donor Committee. She joined the MCBC Staff in October 2022 as the Individual Giving Director. Her responsiblities include working with our Spoke Donors and fundraising for MCBC’s programs. 

Liz is an avid cyclist who has ridden in various states and countries. Before joining MCBC, Liz organized charity bike rides in Marin County for over 15 years. You will find her most often on a road bike. She also loves riding and running the amazing trails in Marin.

Liz holds a degree in Environmental Science from Sonoma State and spent a year studying in the UK. She has a Masters in Business Administration from the University of Phoenix. Contact Liz

Gwen Froh

Education & Encouragement Director

Gwen joined Safe Routes to Schools in 2008. Promoted to Director in 2015, Gwen leads SR2S’s education and encouragement programs toward making active transportation safe and accessible for all Marin children.

Her accomplishments include developing one of the first Safe Routes to Schools Teen Programs in the country. In 2016, she received the Community Partnership Award from the Marin School of Environmental Leadership in recognition of her innovative work with students.

Gwen’s dedication is inspired by her passion for outstanding health. She believes that exercise is key to physical and academic success, and that it is a right, not a privilege. Gwen is often seen riding from MCBC’s Fairfax office to schools throughout Marin, or on her mountain bike where nature invigorates her creativity for working with children.

Prior to joining MCBC, Gwen served as the Chairperson and Business Manager for the Ross Valley School District’s YES Theater Program, and Co-Chaired Manor School’s Winter Faire, directing volunteers to raise over $100,000 for programs that benefit children. Gwen earned a Bachelor’s in Biology from Mount Holyoke College in Massachusetts. Contact Gwen

Lou Goodwin

Instructor and Teen Coordinator, Safe Routes to Schools

Lou has been with Safe Routes to Schools since 2008. She teaches young people – ranging from 2nd graders to high school students – to safely navigate Marin’s roads, streets and crossings. As the Teen Coordinator, Lou inspires teen clubs to promote green transportation to their student bodies, saying, “There’s nothing that compares to a teenager’s enthusiasm!”
Lou grew up riding her bike through the streets of Chicago but was destined to live in California. You’ll regularly see her on local roads with her panniers full of Safe Routes supplies or other times “way the heck out there” in the mountains around Fairfax.

After 13 years spent working at the University of California, San Francisco and the Meyer Friedman Institute on heart disease research, Lou decided she would rather concentrate on the health and vitality of younger generations. Lou holds a Master’s in Cardiac Rehabilitation from the University of Wisconsin, La Crosse and a Bachelor’s Degree in Exercise Science from Northeastern Illinois University. Contact Lou

Krista Hoff

Off-Road Advocacy Director

Krista joined MCBC in 2024. As the Off-Road Advocacy Director, she leads the Off-Road Program’s advocacy, education and environmental stewardship. She also helps with MCBC off-road events, including the Dirt Fondo.

A resident of Fairfax, Krista grew up on her mountain bike and is committed to the bike lifestyle for herself and her family. She holds a degree in Environmental Biology from Barnard College and her most recent gig was at Marin County Parks where she was a Supervising Park Ranger. She has working relationships with all the major land managers in our County and she’s ready to hit the ground running growing our access to trails for people who Mountain Bike.

Monica Leifer

Bilingual Volunteer Coordinator, Safe Routes to Schools

Monica came aboard in 2014 as the Safe Routes to Schools Bilingual Coordinator. She promotes Safe Routes at schools with large Hispanic student bodies. Through events and competitions, Monica pursues the goal of steadily increasing the number of walkers, bikers and carpools in Marin’s bilingual schools.

Biking is an important weekend activity for the Leifer family. Monica and her family frequently ride to Phoenix Lake. Monica’s bike is also her primary mode of transportation to the Larkspur Ferry Terminal and the Downtown San Rafael SMART Station.

Prior to her job with Safe Routes, Monica was Assistant Director of Media Relations at the University of San Francisco. Previously, she worked as a television reporter for the Colombian national news, as the Press Secretary to the Minister of Finance of Colombia, and as a Sales/Marketing Manager at Latin Finance Magazine in Miami, Florida. Monica holds a Bachelor’s Degree in Communication Studies and Journalism from the Pontificia Universidad Javeriana in Bogota. Contact Monica

Lynn Liscio

Communications & Development Manager

Lynn joined MCBC in 2020. As the Communications & Development Manager, Lynn is responsible for getting the messages you read across MCBC’s website, social media, and E-News out to you, while also assisting with fundraising efforts. She also helps oversee the day to day operations of MCBC. Contact Lynn for membership related questions.

Lynn is an avid bike rider who has traveled all over the world to ride her bike. Prior to joining MCBC, Lynn lived in Italy and led cycling tours around the region. She loves exploring new roads and trails on her bike and can be frequently found riding around Marin County. She is fluent in Italian and French and can share with you the best places to ride in Europe and North America.

Lynn holds a Master’s Degree in Environmental Studies from York University in Toronto and a Bachelor’s Degree in Environmental Science from the University of Guelph, in Guelph, Ontario. Contact Lynn

Cooper Miley

Program Manager – Cory’s Ride

Cooper joined MCBC in the summer of 2021 as the Volunteer Coordinator for Safe Routes to Schools. Cooper is passionate about building community with parents, students, and educators in Marin County. Cooper now manages the Cory’s Ride Program.

In his day-to-day activities, Cooper works with Cory’s Ride students in the Canal and Marin City. Additionally, Cooper will be assisting with MCBC programs designed to outreach to the broader community with an aim towards Family Biking, Basic Street Skills, Cory’s Ride, and events like Ride With Us.

Cooper is an avid cyclist and lover of all things two wheels. In his free time, he can be found riding his road or mountain bike on the myriad of great roads and trails throughout the county. Prior to SR2S/MCBC, Cooper worked for Backroads selling cycling and hiking adventure trips. He is also an active coach with the National Interscholastic Cycling Association (NICA) and spends time coaching and mentoring high school athletes.

Cooper holds a BA in Business Administration from the University of Baltimore. Contact Cooper

Zoe Reckas

Communications Assistant

Zoë joined MCBC in the Fall of 2022 as MCBC’s Advocacy Assistant helping our Policy & Planning Director with our newest programs – E-Bike Smart Marin and Local Teams.

Growing up on the Monterey Peninsula her default mode of transportation was walking and biking, which was partly thanks to the inherent bike-friendly nature of her hometown as well as the influence of her father, who refused to drive anywhere within a 15 mile radius. With roots as a commuter cyclist, Zoë became interested in bike camping/touring during her time at Sonoma State where she earned her B.S. in Kinesiology with a minor in Environmental Science and Planning.

She hopes to transform more cities into havens for cyclists and pedestrians, so that others may enjoy the many benefits of human-centric communities. Contact Zoe

Mira Schwirtz

Volunteer Coordinator, Safe Routes to Schools

Mira joined Safe Routes to Schools in 2023 as a volunteer coordinator. She works with southern and central Marin schools in encouraging their communities to walk and ride safely to school. A Marin native and Novato resident Mira gets outside however she can, hiking, biking, or playing tennis.

Katy Vanoni

Education Coordinator, Safe Routes to Schools

Katy started with Safe Routes to School in September 2022 as an Instructor and stepped into the Education Coordinator role in November, replacing long time Education Coordinator Peggy Clark.

Katy has been teaching elementary students for 15 years in Marin County and in the East Bay. She is an advocate for experiential learning and for teaching habits that promote public health and fitness. She believes that by learning cycling early, children will have the skills and enthusiasm to ride in many situations in life.  

Katy will be scheduling Safe Routes’ indoor and outdoor safety education provided to 10,000 2nd through 12th grade students at 50 Marin schools annually. Her focus will be fostering connections with teachers to bring the Safe Routes team, bikes, and courses for students to hone their skills and practice following the rules of the road.

Leading up to teaching in the Bay Area, Katy worked in various roles, including an Art and Sports volunteer teacher to children in Belize. She loves cycling challenges such as sprint triathlons and the 3 Bears ride. She obtained her League Certified Instructor certificate in 2011. She grew up in the San Francisco Bay Area and lives in San Rafael with her husband and son. Contact Katy

Warren Wells

Policy & Planning Director

Warren joined MCBC in early 2021. Serving as the Policy & Planning Director he is responsible for coordinating advocacy campaigns associated with the Road Program, aiming to complete the North-South and East-West Greenways and to make bicycling and walking in Marin safer and more convenient.

Warren sees widespread bicycling as a key part of addressing issues of public health, economic justice, and climate change. He is a car-free commuter, giving up his keys six years ago. Since moving to the Bay, he has taken up recreational riding and has ridden hundreds of miles on Mount Tam and in the Marin Headlands.

An east coast native, Warren has experience as a local organizer, coach, and mediator working in restorative justice. He moved to California to earn a master’s degree in Urban and Regional Planning from UCLA and, after receiving his degree, served as a transportation planner for a private firm developing transit and bike/pedestrian projects across the Bay Area. Contact Warren