(1922) Helburn was a co-founder of the
Theatre Guild in 1919. There she acted first as a literary manager, reviewing scripts, then as casting director, and later became co-producer with
Lawrence Langner. The Guild brought original dramas from European and American playwrights, such as
George Bernard Shaw and
Eugene O'Neill, to the Broadway stage, and established relationships with such notable actors as
Alfred Lunt and
Lynn Fontanne, She also supported new plays and playwrights in smaller theatres. Likewise, the Guild had produced
Liliom, which was later adapted as
Carousel. Other important Broadway productions included
The Iceman Cometh (1946),
Come Back, Little Sheba (1950),
Picnic (1953) and
The Trip to Bountiful (1953). ==Personal life==