Bachelor, Duke University, 1964. Master of Arts, University Pennsylvania, 1967. Doctor of Philosophy, University Pennsylvania, 1973.
Teaching assistant, University of Pennsylvania, 1966-1967; instructor, curator exhibitions, U. Pittsburgh, 1969-1970; curator of art before 1800, Allen Memorial Art Museum, Oberlin, Ohio., 1973-1977; lecturer, Oberlin College, 1973-1977; director Peary-MacMillan Artic Museum, Bowdoin College, Brunswick, Maine., 1977-1983; director Museum of Art, Bowdoin College, Brunswick, Maine., 1977-1998. Trustee Museum Art of Ogunquit, 1977-1989, Regional Art Conservation Laboratory, Williamstown, 1977-1990, Surf Point Foundation, York, Maine. Member Smithsonian Council, 1990-1996.
Member professional advising committee Victoria Society Maine, 1988-1993. Member of advisory county Archives of America Art, 1982-1990. Member American Association Art Museum Dirs., American Association Museums, College Art Association F C.
Married Paul Luther Nyhus, December 17, 1983. Stepchildren: Kristina Victoria, Karen Ida, Katharine Ellen.