 After filming completed, Twelvetrees returned home to Brooklyn, where she fell ill. After a slow recovery, she returned to acting in the USO production of "The Man Who Came to Dinner".She made her final two films, "Persons in Hiding" and "Unmarried", in 1939.Twelvetrees left films in favor of summer stock and made her Broadway debut in Jacques Deval's "Boudoir" in 1941.