Winifred L was a serious actor in New York in the 1920s, a member of the Theatre Guild, which until 1931 when the Group Theatre was founded by Harold Clurman, Lee Strasberg and Cheryl Crawford, was the only NYC producer of consistently high-quality theatr , often plays imported from England, like Shaw's St. Joan, in which Lenihen played the title role. She was never part of the Group Theatre, though the founders had all worked with the Guild in various capacities. When Lenihen saw a run-through of the Group's first production, "The House of Connelly" by Paul Green, directed by Lee Strasberg, her only recorded comment was, "Too slow." Franchot Tone, btw, had the lead in "Connelly." The Group went on to change American theatre and set a new standard for realistic acting that later stars like Brando, Dean, Newman, et al modeled their work on.