The General Council

John Bloom, General Secretary and President


David Alsop, Member at large and Council Chair

Jack Michael, Member at large and Treasurer

Dwight Ebaugh, Member at large and Secretary

Micky Leach, Western Region Representative

Marianne Fieber-Dhara, Central Region Representative

David Mansur, Eastern Region Representative

Joshua Kelberman, Member at large

Nathaniel Williams, Member at large

The Leadership Team

Deb Abrahams-Dematte, Director of Development


Katherine Thivierge, Director of Operations


Laura Scappaticci, Director of Programs


Administrative offices for the U.S. Society are located at
Rudolf Steiner House
1923 Geddes Avenue
Ann Arbor, MI 41804

The three-member Leadership Team are professional staff who work together with the General Secretary to take initiative, lead, and serve on behalf of the Society.

The General Council of the Anthroposophical Society in America carries the spiritual mission of the Society, and they are the volunteer board of directors of our non-profit organization, with responsibility for its legal and financial well-being.

The General Council strives to represent the Anthroposophical Society in the world, support the work of the School for Spiritual Science and the Sections, and help cultivate a deep relationship to anthroposophy among members and initiatives. It is the intent and purpose of the General Council to serve as a connection to the incarnation of anthroposophy in our time.


Deb Abrahams-Dematte,
Director of Development

Deb Abrahams-Dematte joined the ASA in 2014. She has over 20 years of experience working in educational and non-profit settings, including many years at Pine Hill Waldorf School and High Mowing School in Wilton, NH. Her efforts on behalf of the Society are a natural outgrowth of her interest in anthroposophy and her lifelong commitment to creating social and organizational forms that reflect and support our highest intentions. She shares that “building relationships is a passion of mine, particularly in service to generating positive social change.” Deb has a BA in political science and women’s studies and an MS in leadership of mission driven organizations.


Katherine Thivierge,
Director of Operations

Katherine Thivierge joined the ASA in 2015, bringing extensive administrative experience, most recently with the Association of Waldorf Schools of North America and the Oakland (MI) Steiner School. An attorney who practiced law in Michigan for over ten years, she has trained as a Waldorf teacher and a speech artist and has often spoken for eurythmy. Katherine joined the Society in 1976 and is a member of the First Class of the School of Spiritual Science.


Laura Scappaticci,
Director of Programs

Before joining the ASA in 2016, Laura Scappaticci had over sixteen years of experience in education creating and managing events and programs. She served as the Dean of Student Life at Rudolf Steiner College in Fair Oaks, California, attended Waldorf teacher training in New Hampshire, and coordinated a thriving anthroposophical study group. She expresses a core interest in “investigating the ways anthroposophy informs and elevates today’s individuals, while connecting with contemporary cultural innovations and concerns,” and notes that “it gives me great joy to connect individuals and groups, and to help them offer their ideas and work to the world.” In addition to creating events, webinars and the ASA podcast, she is on the executive committee of the Council of Anthroposophical Organizations (CAO).


John Bloom, President
and General Secretary

John Bloom serves as General Secretary of the Anthroposophical Society in America. He lives in San Francisco, and is currently Vice President, Organizational Culture at RSF Social Finance. John is a highly regarded writer and artist who has worked with many non-profits in the area of capacity building for social transformation. He has founded and served as trustee on several boards, and was the administrator at San Francisco Waldorf School for eight years before joining RSF Social Finance in 1998. He helped start the first biodynamic CSA west of the Mississippi in 1988. John has been a member of the Anthroposophical Society since 1983, and the School for Spiritual Science since 1992. He has served for many years on the Council of Anthroposophical Organizations (CAO) and since 2014 on the Society’s Development Committee. He is the author of two books, The Genius of Money and Inhabiting Interdependence.


Dave Alsop,
Council Chair

On completion of the Waldorf Teacher Training program at Emerson College (UK) in 1974, Dave began his Waldorf career as a class teacher and Administrative Chairman at the Sacramento Waldorf School. In 1988 he became Development Director of the Association of Waldorf Schools of North America (AWSNA). In 1990, he was appointed Chairman of AWSNA and served in that capacity for eleven years. He established the Online Waldorf Library, worked at RSF Social Finance and the San Francisco Waldorf School, and is currently Assistant Director at the Bay Area Center for Waldorf Teacher Training. Dave has served on the Waldorf Schools Fund since 1984, and is a Trustee of the Waldorf Educational Foundation and member-at-large of the AWSNA Teacher Education Network. He teaches the Threefold Nature of Social Life and Philosophy of Freedom courses at BACWTT. Dave became a member of the Anthroposophical Society in 1977 and joined the First Class in 1984.


Jack Michael,

Jack was born, raised, and lives in Cincinnati, Ohio, where he works in commercial real estate. Jack and his wife Connie are founders of the Cincinnati Waldorf School and active with the Sundays with Steiner Study Group and a parent study at CWS. They met anthroposophy in New York City in the 1980’s. Among Jack’s particular interests in anthroposophy are education and social economics. As Treasurer Jack identifies his first goal as helping keep the Society on firm financial ground.


Marianne Fieber-Dhara,
Central Region

Marianne Fieber-Dhara met anthroposophy while serving as administrative assistant at the Society’s headquarters in Chicago, Illinois, in 1986, then headed to Emerson College (UK) for a Foundation Year and toured with the anthroposophical Moving Word Theatre. She has been a member of the Society’s Central Regional Council since 2006. Marianne strives to balance her artistic and organizational capacities in life as both an accomplished actress, singer, and instigator of creative and meaningful artistic experiences for adults and children, and a manager and administrator. She lives in Menomonie, Wisconsin, and carries the intention to understand what it means to live consciously on earth today, holding on to the image of each meeting with another human being as a karmic encounter. She is working to embody the new Mysteries of the Will and to practice thinking that is warmed with love.


Micky Leach,
Western Region

Born and raised in western North Dakota, Micky met anthroposophy during her college years in Moorhead, Minnesota. In the late 1980’s Micky moved to Minneapolis, where she worked for the Whitsun Institute, and was a founding Board member of the City of Lakes Waldorf School. In the early 1990’s she moved to Sacramento, California, to take the Goethean Studies Program. She also taught in the Weekend Foundation Program at the Rudolf Steiner College before moving to Santa Fe in 1997. Micky served on the Board of the Santa Fe Waldorf School (2000-2006) during the time when the High School was being formed. Today Micky has a Rhythmical Massage practice and works privately with a woman with special needs. She has been an active member of the Sangre de Cristo Group since 1999, working to re-enliven anthroposophical work in New Mexico. For the past eleven years Micky and her husband, Eduardo Yi, have hosted a study group in their home every Tuesday evening.


Dwight Ebaugh,

Dwight Ebaugh joined the Council in January 2015. He is 72 years old, married, and lives in Ann Arbor, Michigan. Dwight retired at the end of 2012 after a work life in law and economics. In retirement, he devotes his time to anthroposophy: personal study, group study, first class, Great Lakes Branch activities, and Society work. He enjoys photography and being in nature. He carries the question: as a human being wholly committed to anthroposophy, what should I do?


David Mansur,
Eastern Region

Dave has been a member of the Society since 1997 and active in the anthroposophical movement. He served on the Board of Trustees of The Cape Ann Waldorf School in Beverly, MA, and currently sits on the Board of Directors of The House of Peace in Ipswich, MA, serving as Treasurer. He holds a certificate in Sustainable Biodynamic Beekeeping from Spikenard Farm in Floyd, VA, and has completed the one-year training in Biodynamics offered at the Pfeiffer Center in Spring Valley, NY. He manages e-mail for the Anthroposophical Society of Cape Ann and is active in organizing its events, and teaches occasionally in the Center for Anthroposophy’s Foundation Studies course. Dave holds a bachelor’s degree in Physics from the University of Massachusetts, and is employed as a Principal Project Engineer at Physical Sciences, Inc. of Andover, MA. He and his wife, Mary, live in Ipswich, MA, where they have raised three sons to adulthood and now enjoy the company of grandchildren and honeybees. The process taken to re-form the Eastern region of the Society has made clear to him the pressing need for human connection in our times, and the unique role that anthroposophy can play in forging those connections. He looks forward to working with the Society to develop new and meaningful ways that we may meet one another.


Joshua Kelberman,
at large

Joshua Kelberman grew up in the suburbs of Baltimore/Annapolis, Maryland in the early 1980s and 90s. After a few years at SUNY Purchase studying anthropology and literature, he helped found an art collective in Baltimore. There he sang and played music, performed as an avant-garde clown, toured the United States, and co-directed regular music and arts events. He has lived in the New York City area since 2011, initially working as a licensed massage therapist, and now as a live-in guardian for a young man diagnosed with autism. In June 2017, he graduated from CUNY Hunter with a double major in Biology and Greek & Latin. In 2014 he began managing the Rudolf Steiner Bookstore of Anthroposophy NYC, the New York Branch, and joined its Council in 2015, and is currently its treasurer. He facilitates a weekly Foundation Studies Group and is involved in outreach with local Waldorf Schools. He joined the First Class of the School for Spiritual Science in 2015. His main interests are in Goethean phenomenology and holistic science, ancient mystery cults, the history of esotericism, philosophy and epistemology, linguistics, ritual and healing arts, and biography work. His bond with anthroposophy rests on a devotion to true and honest sharing of the innermost depths of experience and living in freedom and love with all beings in a recognition of the spirit.


Nathaniel Williams,
at large

Nathaniel Williams is originally from the Southeastern United States. He studied visual art and anthroposophy at the neueKUNSTschule in Basel, Switzerland, worked in marionette-theater briefly, and then returned to the USA. He has worked as an independent artist (visual and performing) and an educator since. In 2008, he co-founded Free Columbia, an arts and education initiative in Columbia County, New York. He was an active member of Think OutWord, the peer-led training in Social-Threefolding. For the last two years he has been one of two Youth Section representatives on the Collegium of the School for Spiritual Science in North America. He lives in Columbia County and is completing a PhD in Political Theory at the University at Albany (SUNY). After completing his doctoral research into the social and political significance of aesthetics, in science and art, he hopes to develop projects that put the insights to work.