Lucy Biddle Lewis (1861-1941) was a Quaker peace activist in the first half of the 20th century. Lewis lived at 504 S. Lansdowne Ave. in 1910 with her family. In 1915 Lucy traveled with future Nobel Peace Laureate, Jane Addams of Chicago, and other American women to attend a European peace conference. The women who attended hoped to negotiate an end to World War I. After the war, Lucy (and her daughter Lydia Lewis Rickham) helped found the Women's International League for Peace and Freedom, an organization still in existence today. Lucy served as an executive officer of the US section of the group until her death in 1941.
Credit: Thank you to Wendy Chmielewski for submitting Lucy Biddle Lewis as a "Women in History Heroine"