Died 2 November 1993
Married (2) Franklin P. Dexter, circa July or August 1939 because 3 September they were returning from a European honeymoon when their ship Athenia was sunk by a Deutsch submarine. Mianne and her husband survived.
Exciting find Jimbo! This was only 2 days after war was declared. I think we can date the marriage to July 1939, as the New York Times indicated she was "a bride of a month".