Actor, Broadway, New York City, 1975-1978. Associate producer Burry Fredrik Productions, 1977-1980. Producer, owner D/H Productions, Inc., 1980-1987.
Owner, founder Humphrey Fine Art & Design, Ltd., since 1986. Board directors Center Gallery, Bucknell University. Consultant in field, Argentina, Korea, Colombia.
- Producer on and off Broadway plays including Buried Child, 1980 (Pulitzer prize 1980). Curator, writer: Exploring the Boundaries Between Craft and Art, 1993, "Pettoruti" Pompidou Center, Paris and International Museum Tour, 1994. Curator international exhibitions, Colombia, Belgium, France, Japan, Korea, and Venezuela.