Education : Scripps College and with Millard Sheets, Henry McFee and Sueo Serisawa; American Academy in Rome.
Holdings : Whitney Museum of American Art; Museum of Modern Art; Los Angeles Museum of Art; Pennsylvania Academy of Fine Arts; Israel Museum in Jerusalem; Hirshhorn Museum and Sculpture Garden.
Commissions : Reynolds Metals Company 1968; Wells Fargo Bank Plaza; University of California at Sant Cruz; Civic Center Mall in Inglewood, California; Civic Center Plaza at Huntington Beach, California.
Exhibits : Whitney Museum Annual 1959; Recent Sculpture USA at the Museum of Modern Art 1959; American painting at Virginia Museum of Fine Arts 1962; Fifty California Artists at the Whitney Museum of American Art 1962-1963; Pittsburgh International at the Carnegie 1965; retrospective at Newport Harbor Art Museum in Balboa, California 1965; Temple University in Rome 1969; Santa Barbara Museum 1975; Fine Arts Gallery in San Diego 1975; Stephen Wirtz Gallery in San Francisco 1984 and 1987; Monterey Penninsula Museum of Art in California 1988; Palo Alto Cultural Center 1988; Jack Zajac Sculpture 1954-1987 at Art Special Gallery the Oakland Museum 1990; Art Museum of Santa Cruz county 1993; solo shows at the Art Museum of Santa Cruz County 1993; Academy Art College in San Francisco 1996; Meditions on Falling Water and Other Works at Frederick Spratt 1997; Lost Wax Foundry Friends III at Conley Art Gallery at California State University in Fresno.
Teaching : Instructor Pomona College 1959; Professor University of California Santa Cruz. Awards : Artist-in-Residence at the American Academy in Rome 1968; Artist-in-Residence at Dartmouth College 1970; Artist-in-Residence University of California at Santa Cruz 1969-1970.
(material from various exhibition catalog and archival material)