Our trustees

Marilyn Hamilton

CHAIR

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Liza Hollingshead

TREASURER

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Jim Simpson

TRUSTEE

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Sara Trevelyan

TRUSTEE

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Marianne van der Sluis

TRUSTEE

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Angus Marland

TRUSTEE

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Marilyn Hamilton

CHAIR

Dr. Marilyn Hamilton, inspired by the Gaia Code of Care for Self, Others, Place, and Planet, designs, delivers, and supervises learning experiences with Soul Power that build capacity for the wellbeing of the four archetypal Voices of the Human Hive: Citizens, City Managers, Business/Innovators, and Civil Society.

Marilyn is Co-Founder of Living Cities.Earth and Founder of Integral City Meshworks. She authored the Integral City website and book series and curated City Change in a VUCA World.

An international keynote speaker and faculty member at several universities, Marilyn has held CEO, COO, CFO, and CIO roles in both private and not-for-profit sectors. Within Ecovillage Findhorn, she has served as Findhorn College Director/Chair, FIRE Director, DevCom/New Sanctuary Surveyor and Charette Focaliser, Just Transition Synergizer, Local Place Plan Co-Chair, Education Circle Working Group member, Islands of Coherence Meditation Focaliser, Cullerne House Investor, Findhorn Fellow, Evolutionary Leader, Fellow of Urban Arena Europe, and Ambassador for World Unity Week.

Born in Canada, Marilyn has lived in Park Ecovillage Findhorn since 2018.

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Liza Hollingshead

TREASURER

Liza Hollingshead is a long-term member of the Findhorn Ecovillage Community, dedicated to service and to the values established by the founders. She has witnessed the Findhorn Foundation and community evolve over fifty years of profound change and global influence. Liza helped Eileen Caddy write her autobiography and was one of the first independent members of the community.

She has a strong interest in education and has served as a Game of Transformation Guide since 1978, developing deep personal growth and facilitation skills—particularly in objectivity, patience, acceptance, teamwork, and group dynamics.

Liza founded and led Ecologia Youth Trust, successfully operating it as a global charity for thirty years, raising funds, building partnerships, and completing its mission with integrity. Her experience spans financial management, GDPR, and charity law.

Currently, she serves on the NFA Council as Treasurer and Families & Children representative. Her recent initiative, Community Learning Circles, shares inspiration from Findhorn’s legacy with current members. Liza is deeply committed to upholding the founders’ values and believes inheriting the Findhorn Foundation SCIO with an educational purpose is an essential step toward continuing the community’s global impact. She sees this work as an act of service—bringing the values of loving action, inner listening, and respect for nature into the world.

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Sara Trevelyan

TRUSTEE

Dr. Sara Trevelyan originally trained as a medical doctor and began her career in psychiatry in the Scottish Borders and Glasgow. After leaving the health service to raise her family, she became Co-Director, alongside her then-husband Jimmy Boyle, of the Gateway Exchange, a pioneering day centre in Edinburgh. She later retrained in counselling and psychotherapy in the Person-Centred Approach and has worked in private practice for over twenty years. Sara is also trained in Barbara Brennan Energy Healing and as an Interfaith Minister.

Sara has been a regular visitor to the Findhorn community since the early 1990s. Eileen Caddy was both mentor and friend, and Sara has participated in many community activities and conferences. She serves as a Resource Person and Findhorn Fellow, and is a descendant of Sir George Trevelyan.

She has also served as a trustee of the Salisbury Centre in Edinburgh and is currently a trustee of Growing2Gether, a youth-focused charity based in Findhorn. Living life as a sacred path lies at the heart of Sara’s work, and she is deeply committed to embodying the three guiding principles of Findhorn.

Sara has a son living with his family in London and a daughter living with her family in California. She is a proud grandmother of four and is passionate about creating environments that are nourishing and protective of all life.

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Angus Marland

TRUSTEE

Angus Marland grew up on a farm in Suffolk, England, which gave him a lifelong love of the natural world. In his early twenties, he arrived at Findhorn for what was intended to be a weekend visit—quickly turning into full-time community life. He focalised Maintenance and Construction and later focalised the beginnings of Cluny and the island community of Erraid.

In 1980 he moved to Edinburgh and founded an environmental charity, based in the University’s Centre for Human Ecology, which created the UK’s first national exhibition on energy conservation and renewables, and later established a whole-farm organic research project which was adopted by the Scottish Agricultural College. He also served as a trustee of the Salisbury Centre during the 1980s.

In 1990, he co-founded a company to design and build constructed wetlands for wastewater treatment and sustainable urban drainage. Returning to Findhorn in 2001, He served as an NFA councillor for seven years, chaired the Titleholders Association, was Sanctuary Group focaliser, Finance Manager for the Findhorn Foundation, and focaliser of the Park Garden.

In 2016, Angus and his wife Elisabeth moved to the northwest coast to run a B&B and returned to Findhorn in March 2025.

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Jim Simpson

TRUSTEE

Jim Simpson possesses an extensive background in the finance and corporate areas of international commodity marketing, the creative industries, and oil field services. Over the last ten years, Jim has used his C-suite experiences to focus on supporting organizations in the spiritual learning and community development areas to assist in maximizing organizational development areas to best support their mission and goals.

Active in the community, Jim is currently Chair of the United Church of Canada Foundation, board member of Naramata Centre, a spiritual retreat centre on the west coast of Canada and former board member of Pacific Jubilee Society for Spiritual Direction and Vancouver School of Theology and is active in the Naramata Cittaslow group.

Through his involvement in the International Holistic Centre network, Jim became involved with the Findhorn Foundation Trust providing some interim financial consulting support in the spring of 2021. After that contract concluded, Jim was invited to discern on joining the initial board of the SCIO. Jim feels there is a deep call for understanding the potential for alignment of our soul, nature, all beings, and spirit. As we can sit, in community, to listen to that still small voice, we can begin to see how care for one another and this planet can rise as one and create a new way of being. Jim is dedicated to bringing his learnings and experiences to help this time of transformation and new creation at Findhorn to see what can be.

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Marianne van der Sluis

TRUSTEE

Marianne is a psychologist and physiotherapist with a long-standing connection to the island of Erraid, where she has been a regular visitor since childhood and first set foot in 1978. She is now one of the current owners. Her first visit to the Findhorn Foundation was in 1986, when she came to see a dear friend from Erraid, and she has remained inspired by the Foundation’s values and its approach to inner and community work.

Living in the Netherlands, Marianne maintains an active involvement with the Erraid community. With a deep interest in psychological and spiritual development, as well as in sports and health, she brings a grounded and inquisitive presence to her work and relationships. She was invited to join the Board of Trustees in 2025 to help support the smooth transition of operations on Erraid to its own charitable structure. While her focus is on Erraid, she contributes fully to the wider work of the Charity.