S. Clay Wilson, one of the founding members of the Zap comics collective. (Zap is a seminal underground comic book anthology, with contributors like R. Crumb.) He lives in San Francisco.
Patrick Rosenkranz is widely acknowledged as one of the premiere scholars of the underground comix movement. His books include Rebel Visions (the most widely-heralded history of the era) and The Artist Himself: A Rand Holmes Retrospective. He lives in Portland, OR.