1907-1984. US playwright, whose work is concerned with contemporary political and social issues. The Children's Hour 1934, The Little Foxes 1939, and Toys in the Attic 1960 are all examples of the `well-made play'. She lived 31 years with the writer Dashiell Hammett, and in her will set up a fund to promote Marxist doctrine. Since her death there has been dispute over the accuracy of her memoirs, for example Pentimento 1973.