Birth information from <a href='http://www.isfdb.org/cgi-bin/title.cgi?129872'>Imagination, October 1953 essay</a>; year of death from Richard A. Lupoff's 'The Silver Fox — A Memoir'.
Birth information from <a href='http://www.isfdb.org/cgi-bin/title.cgi?129872'>Imagination, October 1953 essay</a>; year of death from Richard A. Lupoff's 'The Silver Fox — A Memoir'.