Two of Trevor 's most memorable roles were opposite Dick Powell in '' Murder , My Sweet '' ( 1944 ) and with Lawrence Tierney in '' Born to Kill '' ( 1947 ) . In '' Key Largo '' ( 1948 ) , Trevor played Gaye Dawn , the washed-up nightclub singer and gangster 's moll . For that role she won the Academy Award for Best Supporting Actress . In 1957 , she won an Emmy for her role in the '' Producers ' Showcase '' episode entitled '' Dodsworth '' . Trevor moved into supporting roles in the 1950s , with her appearances becoming very rare after the mid-1960s . She played Charlotte , the mother of Kay ( Sally Field ) in '' Kiss Me Goodbye '' ( 1982 ) . Her final television role was for the 1987 television film , '' Norman Rockwell 's Breaking Home Ties '' . Trevor made a guest appearance at the 70th Academy Awards in 1998
70th Academy Awards
70th Academy Awards
Claire Trevor