Staff & Board

Staff & Board


Executive Director

David Outman | Executive Director

David Outman joined Yggdrasil in 2020 as its first Executive Director, bringing nearly two decades of land and community conservation, and non-profit management experience. Prior to joining Yggdrasil, David was Executive Director for the Harvard Conservation Trust, protecting and stewarding land and open space at the community scale, focusing on landscape connectivity for wildlife resilience and outdoor recreation. Prior to HCT, he worked for The Trustees of Reservations, a leading Massachusetts’ conservation organization and one of the first land trusts in the country. As a Community Conservation Specialist, his work at The Trustees included a wide range of land conservation and green infrastructure projects across a wide range of Massachusetts' landscapes and geographies – from urban park and community garden creation, to water supply and wildlands protection, to farmland conservation and restoration. Other professional experience includes consulting and advisory roles with Earthwatch Institute, an international NGO advancing and promoting conservation through citizen-science, and Green City Growers, a certified B-Corp working to create farms and gardens in urban and suburban settings. David holds masters' degrees in Psychology and Natural Resource Management from Boston University and Antioch University New England respectively. He lives in Littleton, MA with his wife and daughter.

Farmland Manager

Altfrid Krusenbaum | Farmland Manager

Altfrid Krusenbaum and his wife, Sue, developed and operated Krusen Grass Farms, LLC, a 450-acre certified organic Dairy and Beef operation from 1990 until 2015. There they trained interns and sharemilkers as well as hosting educational events for the community. Since his retirement as an active farmer in 2015, he supports the work of Yggdrasil Land Foundation as their Farmland Manager in Wisconsin. In addition, he runs Krusen Grass Consulting, a dairy and beef grazing consulting business and works as the On Farm Education Director for the Dairy Grazing Apprenticeship Program. Over the years he has been active in serving government and private organizations promoting and helping others understand organic grazing farming practices. Altfrid was born, raised, and formally educated in Germany and immigrated to the US in 1986.



Rebecca Faust | Administrator

Rebecca Faust joined Yggdrasil in 2016 as the Administrator. Prior to joining Yggdrasil, she worked in various industries, in both the for-profit and non-profit sector. She graduated from the University of Wisconsin-Madison with degrees in Psychology & Women’s Studies and went on to obtain her master’s degree in Industrial & Organizational Psychology. She lives in southeastern Wisconsin with her husband and three children.

Board of Trustees


Carol Andrews | President

At-large Member

Carol Andrews has long been a strong advocate for land conservation and sustainable agriculture. She is an active member of the Temple-Wilton Community Farm in New Hampshire, and former President of its associated nonprofit, the Educational Community Farm. Carol is a founding member of the Washington New Hampshire Conservation Commission, a member of Washington’s Land Protection Committee, and former Executive Director of the nonprofit NH Association of Conservation Commissions. Carol lives in western New Hampshire.

Daphne Amory |

Biodynamic Association Appointee

Daphne Amory works as an advisor and coach for leaders in organizations that are involved in regenerative processes. Using tools and cues from the theatre of nature, she helps her clients realize the greater potential for uncommon success that is collectively unfolding for them, their land, and their business.

Secretary/Vice President

Dorothy Hinkle-Uhlig | Secretary/Vice President

Biodynamic Association Appointee

Dorothy Hinkle-Uhlig is committed to finding ways to support biodynamic and organic farmers so that they can rightfully provide for themselves, steward the farmland, and offer their healthy bounty to others.  She is also seeking to understand how to help money flow healthily within society.  Because of continually changing life tasks she has acquired various skills. 

Jean-Paul Courtens |

At-large Member

Jean-Paul Stewart-Courtens is a native of the Netherlands. He is a graduate of Warmonderhof, part of Groenhorst Agriculture College, specializing in biodynamic farming. He moved to the US in 1986 and founded Roxbury Farm in 1990. In 2018 he founded Roxbury Agriculture Institute at Philia Farm to further education and research in regenerative agriculture. Jean-Paul has dedicated much of his career educating the next generation of farmers.  He was part of the original CRAFT (collaborative Regional Alliance of Farmer Training) in 1995. He shared many resources on the Roxbury Agriculture Institute Website (known as the Farm Manuals) and taught numerous workshops at farming conferences. Between 2014 and 2017 Jean-Paul created the ProFarmer program at the Hudson Valley Farm Hub in Hurley NY; an on-the-job training program to provide a path to farm-ownership. During this time, he guided the transition of their 1250-acre sweet corn operation to organic and biodynamic practices.Jean-Paul was recognized as Farmer of the Year by NOFA NY in January 2018.

Jess Brooks |

At-large Member

Jess Brooks is committed to building sustainable and inclusive economies. As Chief Development Officer at Sunwealth, she helps individuals, foundations and organizations put their money to work in human-centered solar projects delivering clean energy, jobs and savings to diverse communities. Prior to joining Sunwealth, Jess worked at BlueHub Capital, a national community development financial institution (CDFI), where she helped grow assets under management from $60 million to over $1 billion, leveraging over $5 billion in public and private investment in underserved communities nationwide. Jess has previously worked at The New York Times Company, as a trader on Wall Street, and in a large social services nonprofit. An active civic leader, Jess serves on boards of First Teacher and The Carrot Project, and chairs Brown University's Advisory Council on Relations with Tougaloo College, a historically black college in Mississippi. Jess lives in Newton, MA with her partner, two sons and a small flock of chickens. She is a proud Newton Community Farm CSA member and has a grain share with Pioneer Valley Heritage Grain CSA.


John Bloom | Treasurer

RSF Social Finance Appointee

John Bloom is Vice President of Organizational Culture at the RSF Social Finance. The purpose of organizational culture is to tend to the reflective capacities of RSF, including how we articulate and practice our values in internal relationships and with our clients, how we learn as an organization, and how we manifest those values and practices through our public voice. John has worked with over 100 non-profits over the last several years in the areas of capacity building and culture change. He has led many workshops, lectured, and written about aspects of money and governance for non-profits. John has founded two non-profits, served as a trustee on several, and worked as the administrator at an independent school before joining RSF. He has written extensively on many aspects of charitable organizations, associative economics,  life as an active member of a 29 year old biodynamic CSA, and on the topics of money and philanthropy, including The Genius of Money—Essays and Interviews Reimagining the Financial World. He lives in San Francisco.

Mark Finser |

RSF Social Finance Appointee

Mark A. Finser was a founding member of the Board of New Resource Bank and served as Chairman until it was acquired by Amalgamated Bank in 2018. He now serves a director of the Board for Amalgamated Bank and its Trust Company. Mark started his career in social finance as a founder of RSF Social Finance. He served as president & CEO of RSF until 2007, during which time he led the growth of the organization’s assets to $120 million. In 2007 he transitioned to Chairman of the Board of Trustees and served until 2018. As an active member of the social finance community, Mark has served on several boards, including B Lab and Gaia Herbs. Mark also works with high net worth individuals and families to develop a strategy to align financial resources with personal values. As part of this work, Mark serves as an independent trustee for families and their multigenerational beneficiaries.

Robert Bower |

Michael Fields Agricultural Institute Appointee

Robert Bower is the former manager of the Corner Garden at Hawthorne Valley Farm in Ghent, NY. Prior to joining Hawthorne Valley in late 2010, Robert worked for over 15 years at Angelic Organics, a northern Illinois, 1,500-member, Biodynamic CSA with 30 acres in vegetable production each year. At Angelic Organics, he was both the General Manager and the Growing Manager. Additionally, since 1995, Robert managed efforts in Customer Service, Distribution, Finance, Marketing, and more. Robert is the father of three adult sons, is learning how to keep honeybees, and enjoys studying Anthroposophy and Biodynamics.

Sonja Gorsch |

At-large Member

Sonja Gorsch lived on a biodynamic farm as a teenager, worked on a biodynamic farm for a year in the US and buys all her produce from a Demeter licensed farm near her home in Germany. She teaches part time at a Waldorf school and has been on the board of a nonprofit foundation that supports art, education and science inspired by Rudolf Steiner for many years. Since her parents emigrated to the United States more than 30 years ago, she visits the US every year and is very conscious of the need to bring health to the soil and to help farmers to farm the land in harmony with nature, animals and people.

Christopher & Martina Mann |


Christopher Mann was born in London in 1930, to pioneer teachers of the first English speaking Waldorf school. He eventually became a Waldorf teacher himself and developed his first community development in Sussex, called Michael Fields.  In the early 1980’s, Christopher and his wife Martina purchased their first parcel of agricultural land in the US and created a community farm.  They also founded the Michael Fields Agricultural Institute in East Troy, WI and served on its Board of Trustees for many years. Throughout his lifetime, Christopher developed enterprises and land trusts to support biodynamic, organic and sustainable agriculture, along with research and education. Of these, the Yggdrasil Land Foundation was founded as a support organization to RSF Social Finance, the Biodynamic Association and Michael Fields Agricultural Institute. Christopher found great joy in meeting pioneers involved in new Anthroposophical and spiritually based initiatives.

To learn more about Yggdrasil Land Foundation,
check out Our Story, Core Practices, Land & Community and Protected Lands.