An American author of mystery novels. She had one of the longest careers (from the 1920s to the 1980s) among major American mystery writers (Wikipedia).
Rex Todhunter Stout (December 1, 1886 – October 27, 1975) was an American writer noted for his detective fiction. His best-known characters are the detective Nero Wolfe and his assistant Archie Goodwin, who were featured in 33 novels and 39 novellas or short stories between 1934 and 1975.