Helen Elizabeth Reist died at home in Menlo Park on June 5. She was 84.
Born in Fort Bragg, she had a lifelong passion for nature and environmental causes, say family members. She studied chemistry at Santa Rosa Junior College and UC Berkeley, where she met her future husband, Elmer. They were married in 1954 and moved to Ottawa, Canada, for a year. They returned to the Bay Area, first to Palo Alto, then to Menlo Park.
Ms. Reist's travels included a total solar eclipse week in Salzburg, African safaris and birding expeditions in South America.
She is survived by her husband of 61 years, Elmer; daughters Nancy and Noreen; and two granddaughters. Memorial gifts may be made to Save the Redwood League.