(click on a name for a bio)
Pamela Tames, Executive Director
Pam has more than 20 years’ experience developing and leading programs across the nonprofit, health, legal, and human services sectors. Her career has been defined by passionate efforts to advance the health and wellbeing of others. As the executive director of LexFarm since 2021, she leads a community organization that provides farm-fresh certified-organic produce to residents of Lexington and nearby towns, including those in need, and educates and connects the community about locally grown food and regenerative regenerative farming practices.Pam and her family have lived in Lexington since 1998. Pam enjoys her backyard garden, growing vegetables, herbs, flowering plants and even a peach tree. She has volunteered in the schools and community organizations and is also Town Meeting Member. Pam has been a member of LexFarm’s CSA since its founding. She helped LexFarm become a SNAP-authorized retailer, increasing access to organic produce for people of all income levels. Pam marvels at the possibilities and challenges that come with organic farming and appreciates the local food source and preservation of historic farmland. Her favorite vegetables are summer and winter squash.
Miranda Lachman, Farm Manager

Katerina Kyuchukova, CSA & Greenhouse Manager

Matt Schector, Assistant Grower

Rachel Curtin, Education Director

Mar Koren, Farm Store Manager

Sara Bothwell Allen, Volunteer Programs Coordinator
Sara has been a Lexington resident since 2014, when she moved back to the area, bringing her California-born family members with her. Sara’s background is in insect ecology. For several years, her research focused on conservation biological control of insect pests in organic vegetable cropping systems.More recently, Sara has been volunteering as Big Backyard coordinator at Estabrook school, as a founding member of Lexington Living Landscapes, and serving in Lexington Town Meeting. She’s excited to be expanding volunteer opportunities at LexFarm, and finding ways to engage more members of our community with meaningful experiences. Sara’s favorite vegetable is tomato. When she’s not at LexFarm, you’ll find Sara with her family or swimming.
Chamara Sandaradura, Bookkeeper
Chamara and his family live in Ashland, MA, and are originally from Sri Lanka. Chamara is passionate about education and non-profits. He is very excited about bringing his wife and sons to the farm, teaching his sons to appreciate nature, and exposing them to the farming environment. Chamara currently works at Framingham State University and has a Masters Degree in Business.
2025 – 2026
Mary Rose Scozzafava, President

Ron Chaney, Vice-President
Ron lives with his wife Julie in Arlington less than a ten minute walk from the farm. Ron’s grandfather was a farmer and school principal in southern Ohio. When Ron would visit, he would play on his grandfather’s tractor, help his grandmother tend her vegetable garden and chickens, and dodge the cow patties when walking through the pasture. Ron’s parents also maintained a modest-sized vegetable garden where Ron plowed and disced the soil and helped plant and harvest corn, beans, tomatoes, and potatoes.
Ron moved to the Boston area to attend MIT where he holds a bachelor’s, master’s, and PhD in electrical engineering. Ron recently completed a 24-year stint at Akamai Technologies, where he was Vice President of Engineering. Ron’s son Ben lives in Manhattan, and his daughter Isabel lives in Virginia.
Mark Manasas, Vice President
Mark and his family have lived in Lexington since 2005. His love for all things mechanical brought him to volunteering for maintenance and building projects on the farm. He is motivated by the 400+ year history of the Farm dating back to 1642. The tenacity of the Busa family maintaining the farm in the 1900’s as other farms in Lexington (formerly known as Cambridge Farms) succumbed to market pressures inspires him to help keep the farm working – as a farm.Mark was most recently VP of Engineering for Fractyl Health where he led the team developing a device and procedure for treating Type 2 Diabetes. Mark is president of the nonprofit Lexington Lyceum Advocates and is also a Town Meeting member.
Tharshini Mathew, Treasurer
A Lexington resident since 2006, Tharshini’s interest in farming started when she began visiting the farm for dirt play, and other activities with her son. Her passion developed and she and her son started a small backyard vegetable garden which they manage together during the summer. Increased interest in farming and living healthy led her to join the CSA and they have been enjoying the fresh produce for the past 4 years. Pick your own is one of their favorite parts of the CSA. By profession she is an accountant and manages her husband’s company along with her own clients. She is an active PTO board member at her son’s school, William Diamond Middle School.
Christopher Thomas, Clerk
Growing up in Arlington and studying environmental studies and plant and soil science at the University of Vermont, Chris has always been passionate about sustainable agriculture and the benefits of locally grown produce. His appreciation for fresh, high-quality food was deepened through a CSA share during his college years. As a professional landscaper, he understands the importance of soil health and biodiversity in creating thriving ecosystems.
Chris is particularly interested in organic agriculture and its potential to provide more sustainable systems for growing food while supporting the farmers who produce it. Now, he seeks to join the board of the LexFarm to contribute his knowledge and expertise to promoting a healthier, more resilient food system in the community. His goal is to support initiatives that prioritize soil health and biodiversity while providing equitable access to fresh, nutritious produce.
Gene Diaz
Since moving to Arlington 15 years ago Gene has lived just 2 blocks from the farm in the Mt Gilboa neighborhood. From there she takes a daily walk to the farm and the Reservoir where she enjoys being in an open, natural environment. At home she has an herb and veggie garden in her front yard, each year bringing home seedlings from the farm. After retiring from Lesley University in Cambridge in 2014 where served as a professor and administrator, she took on the role of Senior Research Partner at PERG-Learning where she conducted program evaluations for grant funded projects around New England. As an educator she recognizes and supports the life-long impact that learning in nature can have on the lives of young children, the future stewards of this land.
Mark Gabrenya
Mark has lived in Lexington since 1996. He has been on the board of directors since March, 2015 and is a member of the Property Committee. Much of his work for the farm is focused on improving and repairing the infrastructure and cleaning up the property. He also does graphic design projects and was instrumental in the construction of the geodesic dome. When he’s not at the farm he’s an avid cyclist and a tour leader for Adventure Cycling Association.
Eric Helmuth
Sheila Chen Lawrence

Brian Mariano
Brian has been pursuing a career in agriculture since 2017 while living in East Arlington. Brian’s agricultural career has spanned apprentice field worker to farm manager to small technical assistance provider geared to small scale regenerative growing practices. Brian worked at food-based nonprofits in Lowell and Lancaster, Mass and is excited to bring his experiences to LexFarm – agriculture in his immediate community. He is looking forward to learning more about how non-profit farm organizations work, as well as advocating from his experiences on the ground as a farmer. He joins the board with a lot of passion for local food, local land, and making the skills learned farming available to those interested. Brian hopes to become a small farmer one day and loves opportunities to share his experiences with others.
Maria Sagan
Susan Schiffer

Ping Shen
Erin Thomas

Erin is a lifelong musician and has studied piano, violin, voice, and gamelan. She is an active performer and charter member of Gamelan Galak Tika, a Balinese gamelan orchestra in residence at MIT, and with them has performed throughout New England, at Lincoln Center and Carnegie Hall, and in Bali, Indonesia. She supports many nonprofits as a volunteer and occasional fundraiser, including Blue Heron, Cambridge Youth Gamelan, Dana-Farber Cancer Institute, and Food Link. Erin lives with her family in Arlington, where she maintains the family garden in a way she hopes would make LexFarm proud.
Mariel Vandersteel
Mariel, a California native, spent her childhood tasting samples of seasonal produce each week at the year-round San Rafael Farmers Market. This soon grew into learning about the beauty and importance of supporting local farmers and organic produce and soil, something which Mariel is still passionate about today. After moving to Arlington in 2023, Mariel and her family were delighted to find LexFarm and the Arlington Reservoir nearby! Currently, Mariel works as the Development Manager at Passim, a folk music venue and nonprofit in Harvard Square and earned a masters degree in Arts Administration with a certificate in Fundraising Management from Boston University.
A graduate of Berklee College of Music, Mariel spent the first part of her career as a professional touring and teaching musician. She studied the Hardanger fiddle (a traditional Norwegian stringed instrument) at Høgskolen Telemark in Rauland, Norway and was a member of a band that was twice selected by the U.S. State Department to act as cultural ambassadors throughout Kazakhstan, Uzbekistan, India, Bangladesh, Ukraine, Montenegro, Greece, and Estonia.