From Wikipedia

Kathryn Marlowe (May 25, 1914 – January 2, 2010), born Kathryn Isabelle Rea, was an American film actress in the 1930s, most notably in Dodsworth. Other films included Bridal Grief, Artists and Models and China Passage.

Before making films she worked in Chicago and New York City hotels, musical stage, and radio. She got the lead role in a new musical revue, Two for the Show, in which she introduced a song, "How High the Moon", written to showcase her vocal style. It became a pop standard.

After she left New York, she relocated to California, originally invited to be Fred Astaire's dance partner in movies. She was signed with Samuel Goldwyn and appeared in films with several studios under different names, such as Kay Marlowe, Katharine Marlowe, Kay Kimber, Kay Rea, Kea Rea, Kay Rhea, and Kathryn Marlow, before landing on Kathryn Marlowe.

After leaving Hollywood, she had leads in several stage musicals in NYC and London, and roles in television dramas. She pioneered a daily women's TV program in Ottumwa, Iowa in the early 1950s.

Marlowe died at the age of 96 in Tampa, Florida after a long period of ill health.