A memorial service will be at 2 p.m. Saturday at the Mystic Congregational Church. Private burial will be in Plain-Mont Cemetery, Plainfield, Vt. There are no calling hours.
Mrs. Foss was born on Aug. 22, 1904 in Elderband, Nova Scotia, the youngest child of William Trapnell and Susan McKeen Martin. She was raised in Stoneham, Mass., and was a graduate of Stoneham High School.
She was employed for several years as a physician's assistant in Stoneham. A resident of Mystic since 1956, Mrs. Foss had summered for several years at Lake Groton, Vt. She was a member of the First Church of Christ Scientist in Mystic. On Feb. 10, 1935, on Cape Cod, she was married to John Rogers Foss Sr. Mr. Foss survives.
She is also survived by a daughter, Judith F. Hart of Portland, Maine; a son, John Rogers Foss, Jr., of Lutz, Fla.; and a grandchild.
Memorial gifts may be sent to the Animal Welfare League, P.O. Box 5, East Lyme 06333.
The Dinoto Funeral Home, 17 Pearl St., Mystic has charge of arrangements.