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Off-Broadway, she starred in Fashion, which she reprised twenty years later at the Pasadena Playhouse. She toured extensively for the USO in Europe, Africa, and the Far East including Viet Nam. Her regional theatre credits include: The Studio Arena Stage (Buffalo, New York), The Alliance Theatre (Atlanta), A.C.T. (Seattle), the Williamstown Theatre (Massachusetts), PAF Playhouse (Huntington, Long Island), Playwrights Horizons (New York City), the Boston Shakespeare Company, and three seasons with the acting company of The Guthrie Theatre (Minneapolis). She studied opera on scholarship with Lotte Lehmann in Santa Barbara and acting with Alvina Krause at Northwestern University where she received her Bachelor of Music degree.
Valor was a runner-up in the Metropolitan Opera Auditions in New York City. Her last acting role was Miss Framer in Lettice and Lovage at the Pasadena Playhouse.