How long did the career span last for what English actress who starred in the British stage play The Deep Blue Sea?
The Deep Blue Sea (play): The Deep Blue Sea is a British stage play by Terence Rattigan from 1952. The Deep Blue Sea (play):  The play was first performed in London on 6 March 1952, directed by Frith Banbury, and won praise for actress Peggy Ashcroft, who co-starred with Kenneth More. Peggy Ashcroft: Dame Edith Margaret Emily Ashcroft, DBE (22 December 1907 – 14 June 1991), commonly known as Peggy Ashcroft, was an English actress whose career spanned more than sixty years.
more than sixty years