Conservator Fine Arts Museum San Francisco, 1975-1976. Co-director conservation San Francisco Museum Modern Art, 1976-1986, chief conservator, 1986-1989, acting chief curator, 1989, deputy director for curatorial affairs, since 1989. Lecturer art department University California, Davis, 1976-1977.
Conservation consultant California State History Collections, Sacramento, 1973-1982, California State Capitol Restoration, Sacramento, 1979-1981, Tel Aviv Art Museum, 1987.
Fellow International Institute for Conservation History and Artistic Works, American Institute for Conservation History and Artistic Works (chairman membership committee 1981-1988, chairman officers nominating committee 1988-1989). Member Western Association for Art Conservation (president 1977-1978), Bay Area Art Conservation Guild (founding), Museum Management Institute (Jean Paul Getty trustee 1990, admissions committee since 1991).
1975 - 1976
1976 - 1986
1986 - 1989