Co-Founder & Board President

John D. Halamka is the President of the Mayo Clinic Platform, leading a portfolio of new digital platform businesses focused on transforming health by leveraging artificial intelligence, the internet of things, and an ecosystem of partners for Mayo Clinic. He is a practicing emergency physician and has a certificate in Organic and Sustainable Agriculture from the University of Massachusetts. He enjoys the hands-on side of being Facilities Manager. You can often find him out on a walk with one of the Sanctuary dogs. John has his Mayo ClinicPlatform Blog

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Co-Founder & Executive Director

Kathy Halamka, BA, MFA, Secretary of the Board, brings business, visual arts and arts educator training to her many roles here at the sanctuary, including Volunteer Director, Events Manager, Social Media, Humane Education Coordinator, Fundraiser and Public Relations. You will often find her spending time with Handsome Paul the Turkey and her other Feathered Friends, talking new photos for the "Updates from Unity", or checking on her beloved ponies. She is lead blogwriter at UFS as well

David Wirbal is now retired from Fidelity Investments and founded Dudley Brewing. He is often known here affectionately as "Dud's Dad"after being instrumental in rescuing Dudley.

Lara Heilbrun BA Sociology (Tufts University), is a Naturalist at Huntley Meadows in Alexandria, Virginia with visual artist and design skills. Her work is regularly seen in Sanctuary media and the Store

Ann Harrison Wehr is a professional skating educator, with a long track record of volunteering in many leadership roles here at the Sanctuary.

Diane Stevens has been involved in rescue for a long time and is Executive Director of Greyhound Rescue of NE. She has years of accounting, treasurer and board service to help the Board.

Wendy Weitzner is a talented executive in healthcare consulting, and she brings prior board experience, leadership and planning skills to her role on the Board

Our 100% donating and vegan board insures our non-profit fiscal responsibility and guides Unity Farm Sanctuary toward a meaningful future.



Farm Manager

Tyla accepted the vital role of Farm Manager of the Sanctuary in 2018, bringing with her a decade of experience with farm animals and an innate sensitivity to their needs. A 2017 graduate of Norfolk County Agricultural High School, she majored in Equine Science and Farm Management. At UFS, she oversees all animal care and sanctuary staff, and is often assisted in her duties by her beloved dog, Mae. In her free time, she runs her own farm (Highland Gypsy Farm), and serves the town of Holliston as a firefighter and Nationally Certified EMT. Tyla is also training to be a Medic.



Barn Staff

Sam joined the Sanctuary team in 2021. She is a 2017 graduate of Norfolk County Agricultural High School, where she majored in Canine Science. Her new horse Vegas, and her dog Maverick both bring some extra fun to her free time. If she has the chance, she likes to spend time in Maine or the Cape. Sam has a special fondness for sweetheart Adele the donkey.

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Barn Staff

Tyler Greenberg is a rising senior at Holliston High School and joined us in 2020. An avid and talented football player, he is also a Fire Explorer with the Holliston Fire Department, keeping the emergency alert audio band handy to stay up to date. Tyler brings prior experience for working with the practical equipment we use onsite (gator/plow, tractor, groundskeeping tools and more) and he has enjoyed getting to know a great deal about all the animals here at the Sanctuary.

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Barn Staff

Josh has been with Unity since Summer 2019. He is currently a rising junior at UNH, where he studies mechanical engineering and is a bonafide member of the Lumberjack/Woodsmen team. He brings his great stamina and strength to his work at Unity, as well as a love for working with animals. Although he can't choose a favorite resident, his shortlist includes George, Winston, and Dudley. On his days off, Josh enjoys doing projects at home, mountain biking,  and being entertained by his cats, Tux and Peanut.




Paul lives just a few minutes away from the sanctuary and joined the UFS team in Fall 2018. He is responsible for managing the orchard, sanctuary trails, and landscape maintenance. He has always had a great love for the outdoors, wildlife, and nature and brings that passion to his work here. He has worked at Wellesley College as a turf specialist for the past three years. In his free time, he loves spending time with his yellow lab, Maisy, and going to the Cape. His not-so-secret favorite animal at the sanctuary is Star the Donkey.