Edith N. Putney was a teacher at Newtown High School and founded the XYZ club. She died at the age of 39, attempting to save 3 of her students who drowned in a rafting accident. The tablet was placed on the wall of Newtown High in 1923.
"Older Woman Sacrifices Her Life in Futile Attempt to Save Her Companions." The New York Times, July 1, 1917. https://www.nytimes.com/1917/07/01/archives/article-1-no-title-older-woman-sacrifices-her-life-in-futile.html