Conversation so far:
What was the Mercury Theatre?
Welles and Houseman founded their own repertory company, which they called the Mercury Theatre.
How did he come up with the name?
name was inspired by the title of the iconoclastic magazine, The American Mercury.
Who else worked with Welles?
the original company included such actors as Joseph Cotten, George Coulouris, Geraldine Fitzgerald, Arlene Francis.
Was any one else part of his crew?
Arlene Francis, Martin Gabel, John Hoyt, Norman Lloyd, Vincent Price, Stefan Schnabel and Hiram Sherman.

Question: When did the theater first open?
Self-contained rewrite: When did the Mercury Theatre first open?