Helen Kopp Schwenn, 92, died on Feb. 18 in Oak Ridge.
Helen was born Sept. 16, 1920, in Monroe, Wis., and spent her formative years in the Swiss community of New Glarus, Wis., where her father was a cheese maker.
She met her husband of 52 years, Marvin F. Schwenn, in Madison, Wis.
After a short time in New York City, where Marvin joined Union Carbide Corp. and the Manhattan Project at Columbia University, they relocated to Oak Ridge in August of 1944.