Complex sentence: After spells abroad and at the Gate Theatre she was put in charge of the new Peacock Theatre at the Abbey from 1937 until she left in 1944 to direct the Gaiety School of acting.
Split into simpler sentences: After spells abroad and at the Gate Theatre she was put in charge of the new Peacock Theatre at the Abbey in 1937. She left the Abbey in 1944 to direct the Gaiety School of acting.