The Cotswolds caused Smedley, hitherto a Tory by inheritance, to move sharply to the left in her politics. She carried her idealism and activism back to London to run the Greenleaf Theatre and theatre school, to the USA for the years 1915-22, where she and Armfield left their impress on theatre movements in New York and California, and she was no less active in her late years back in England.