Question: What is the date of death of Cornelia James Cannon's husband?
Sentence (from "Cornelia James Cannon"): In 2011, Maria I. Diedrich published a biography of Cannon, "Cornelia James Cannon and the Future American Race", juxtaposing her life and work as a feminist reformer with her beliefs in eugenics in the context of the 1920s and 1930s.
Relevant evidence: No