AB, Yale University, 1963. Master of Arts, Harvard University, 1965.
Assistant curator Fogg Art Museum, Harvard University, 1964-1965. Curatorial assistant Worcester (Massachusetts) Art Museum, 1965-1967, assistant director, 1969-1970, director, 1970-1981, Hood Museum of Art, Dartmouth College, Hanover, New Hampshire, 1981-1984, Denver Art Museum, since 1984. Director Wichita Art Museum, 1967-1969.
Lecturer Boston Architectural Center, 1964-1965. Instructor Clark University, 1966-1967. Associate director Etruscan Foundation, Siena, 1965, 66–.
Professor art Dartmouth College, 1981-1984. Board directors Ava Gallery, New Hampshire Visual Artists Coalition.
Member Association Art Museum Directors, Archaeol. Institute American, International Council Museum, College Art Association Clubs: Yale (New York City and Colorado), Denver Athletic.
Married Elaine Tallmadge Osborn, 1962. Children: Rebecca Eve, Jessica Ann, Alexander Osborn.