Diggs' first major success was the play
Close Ties, which premiered at
Lexington Conservatory Theatre in August 1980. The play starred notable stage actress Margaret Barker,
Sofia Landon Geier and
John Griesemer. It was directed by Barbara Rosoff. "A remarkable production of a lovely and loving play," said critic Jeffery Borak.
The Knickerbocker News described it as "...beautiful, touching, gentle and heartwarming." A year later it was produced at
Long Wharf Theatre, directed by
Arvin Brown and once again starring Barker; the actress had been friends with Diggs for several years, and the author crafted the role with Barker in mind. In 1983, it was made into a television film. Her next play,
Goodbye Freddy, was workshopped at Lexington Conservatory Theatre, followed by its world premiere production at
South Coast Repertory in 1983. Diggs won the CBS Dramatists Guild Prize for the play that May. The play was produced at
Portland Stage Company in December 1984, starring fellow Lexington Conservatory alumni
Court Miller and Kit Flanagan, and directed by another alumni, Barbara Rosoff. The production of
Goodbye Freddy was later remounted in New York on September 20, 1985, starring Barbara Eda-Young and Michael Murphy in place of Court Miller, along with
Walter Bobbie, Carole Monferdini, Nicholas Cortland and Kit Flanagan."As she demonstrated in
Close Ties and the one-act
Dumping Grounds, the playwright has a keen ear for dialogue and a watchful eye for those offhanded moments when characters accidentally reveal themselves," said
New York Times critic
Mel Gussow.
American Beef, her third play, explores the dying myths of the American west, and was inspired by childhood visits to the
Chapman-Barnard Ranch in Osage County, Oklahoma. It was commissioned in 1985 for
South Coast Repertory. Productions include 1987 world premiere at Gloucester Stage Company in Massachusetts followed by
International City Theater in Long Beach, California. In October 1988, she premiered
Saint Florence at
Capital Repertory Theatre in Albany, NY, after a staged reading of it there in May. "Both an instructive lesson from history and a compelling act of the imagination," said the review of the premiere in the New York Times. Based on the life of
Florence Nightingale, the production starred Claire Beckman. In 1990, it was produced at the
Vineyard Theatre in New York. Re-titled
Nightingale it was directed by
John Rubinstein with
Kathryn Pogson in the starring role. In 1996, she collaborated with composer
Harvey Schmidt and lyricist
Tom Jones, writing the book for the musical
Mirette based on Emily Arnold McCully's Caldecott award-winning children's book
Mirette on the High Wire. It opened in August 1996 at the
Norma Terris Theatre and later moved to the
Goodspeed Opera House. Diggs also contributed to the first season of television series
St. Elsewhere. Although writing for television was lucrative, she found the experience less fulfilling than theatre. ==Personal life==