Ms. Chase, who was known as "Betsy," lectured and conducted school and community tours of the art gallery in her role as docent from 1931 until her retirement in 1970. First as an instructor and later as an assistant professor, she also taught popular courses in art history for students at both the School of Art and Yale College. Among the topics she covered were the history of sculpture, symbolism in art, and her specialty, Christian iconography. She also edited the Bulletin of the Yale Art Gallery and, during a severe staff shortage in the years of World War II, took on numerous tasks at the gallery.
She was the author of three books: "Famous Paintings: An Introduction for Young People" 1951 , "Famous Paintings: An Introduction to Art" 1962 and "Famous Artists of the Past" 1964 .
Born in Ware in 1906, Ms. Chase graduated from Radcliffe College, where she majored in the history of art. She taught at Salem Academy in Winston-Salem, North Carolina, and at Ware High School before coming to Yale. Following her retirement from the University, she returned to Ware and became a member of Trinity Episcopal Church, where she sang in the choir. She was a member of the Social Science Club of Ware.
Ms. Chase is survived by a sister, Eleanor C. Chase of Ware, with whom she lived. Memorial contributions may be made to the Ware Library Association, Main Street, Ware, Massachusetts 01082, or to the Alzheimers Disease and Related Disorders Foundation, 11 Campus Lane, Easthampton, Massachusetts 01027.