David Cohn was a resident practitioner at the Zen Center of San Francisco's three practice places, Tassajara Monastery, Green Gulch Farm, and the City Center, from 1969 to 1984, and was ordained as a priest in 1974. Since then he has carried on lay practice, became married and has a daughter. He owned and operated two San Francisco restaurants from 1985 until retirement in 2009. He was a Zen Hospice Project volunteer for 20 years, a Peninsula Hospital volunteer chaplain from 2002 to the present, and is a Mission Hospice volunteer. He serves as board chairman and consultant for the Zen Center Everyday board, overseeing Greens. He practices now with Gil Fronsdal and the IMC and IRC communities, is an IMC board member, is on the IMC chaplaincy council, and is a mentor for several IMC courses.