Course Faculty

Mac Mead, Pfeiffer Center Program Director and Farm Team Mentor, has worked with biodynamics since 1975, when he first learned biodynamic methods from former colleagues of Ehrenfried Pfeiffer at the Fellowship Community. Mac was the resident farmer at Duryea Farm of the Fellowship Community until 2005, and joined the Pfeiffer Center in 2006.

Megan Durney coordinates the daily work of our Farm Team, and plays a lead role in our farm’s vegetable production and the Pfeiffer Center’s educational programs. She directs our seed saving, herb growing, and herbal products, and manages our CSA, Farm Stand, and sales to other outlets. Megan is a member of the Biodynamic Association’s board of directors.

Jess Brobst is the herdswoman at Hawthorne Valley Farm in Ghent, NY, where she spends her days caring for all aspects of barn life and dairy herd management. Before turning to farming, Jess worked in wildlife rehabilitation and as a veterinary assistant.

Bill Day is the Pfeiffer Center’s beekeeper and beekeeping instructor. He first learned biodynamics as a Pfeiffer Center intern in 2001-2 and he has kept bees following biodynamic principles since 2006.

Spencer Fenniman is the general farm manager at Hawthorne Valley Farm in Ghent, NY. He has been growing crops, making compost, and raising livestock using biodynamic production practices for the past thirteen years.

Jennifer Greene is Executive Director of the Water Research Institute of Blue Hill, ME. Since the 1980s she has been a pioneer of flow forms in the United States, and continues the work of Theodor Schwenk in documenting water quality through the “drop picture” method.

Craig Holdrege is a biologist, an educator, and Director of The Nature Institute in Ghent, NY, a research and education organization for a unique qualitative approach to science. Craig is the author of many books and articles on genetic engineering, genetics, and a holistic, Goethean approach to science.

Sherry Wildfeuer is the editor of the Stella Natura Biodynamic Planting Calendar, a co-worker at Camphill Village Kimberton Hills, PA, and a long-time active member of the Anthroposophical Society and the Agriculture Section of the School of Spiritual Science.

Hugh Williams is the owner of Threshold Farm in Philmont, NY. He has been growing fruit using biodynamic methods on a commercial scale for thirty years.