What occupation did Robert E. Howard and Robert A. Heinlein share?
Robert E. Howard: Robert Ervin Howard (January 22, 1906 – June 11, 1936) was an American author who wrote pulp fiction in a diverse range of genres. Robert A. Heinlein: Robert Anson Heinlein ( ; July 7, 1907 – May 8, 1988) was an American science fiction writer.
writer