Dorothy Day was an American journalist, social activist and anarchist who, after a bohemian youth, became a Catholic without abandoning her social and anarchist activism. She was perhaps the best-known political radical among American Catholics.

Elizabeth Gurley Flynn was an American labor leader, activist, and feminist who played a leading role in the Industrial Workers of the World (IWW). Flynn was a founding member of the American Civil Liberties Union and a visible proponent of women's rights, birth control, and women's suffrage. She joined the Communist Party USA in 1936 and late in life, in 1961, became its chairwoman. She died during a visit to the Soviet Union, where she was accorded a state funeral with processions in Red Square attended by over 25,000 people.