After leaving the Met, Dickey's work shifted predominantly towards musical theatre, radio, and concert work. In 1945, she was signed to a three-year contract co-hosting the radio program
Texaco Star Theater with
James Melton. She was also a recurring guest on
The Celanese Hour on Chicago radio and the
Cities Service Band of America concert series. She became a leading lady on Broadway from 1944 to 1954. She starred as
Empress Maria Theresa in
Fritz Kreisler's
Rhapsody at the
New Century Theatre in 1944. This was followed by the role of Brenda Blossom in another
Gilbert and Sullivan musical adaptation,
Hollywood Pinafore by
George S. Kaufman, which premiered at
Ford's Grand Opera House in May 1945 before transferring to the
Alvin Theatre on Broadway the following June. In 1946, she starred in the variety show
The Postman Always Rings Twice with
Guy Lombardo and his orchestra at the
Capitol Theatre. Dickey had the biggest success of her career when she originated the role of Marjorie Taylor in
Rodgers and Hammerstein's
Allegro at the
Majestic Theatre on October 10, 1947. She had performed the role the September prior in out-of-town try-outs in New Hampshire. She remained with the production until it closed after 315 performances on July 10, 1948, and then continued to perform the role in the first national tour of the musical in 1948–1949. She recorded the role for the original Broadway cast album in 1947. Dickey left the National tour of
Allegro following the production's stay in Los Angeles in February 1949; citing the desire to return home to her family. and they had recently had a daughter in June 1947, just three months before
Allegro had opened on Broadway. After this decision, Dickey continued her association with Rodgers and Hammerstein through appearing in their annual summer concerts with the
New York Philharmonic at
Lewisohn Stadium from 1948 to 1957 singing works from the shows
Carousel,
Oklahoma!,
South Pacific,
Allegro, and
The King and I with crowds as large as 20,000 in attendance. She also performed in a special concert of Rodgers and Hammerstein's music at
Drury University in 1949, when the two men were honored with honorary doctorates in music from that institution; and starred in a concert of their music at
Carnegie Hall with the New York Philharmonic in 1954. She also was a soloist in a concert of their music with the
Los Angeles Philharmonic at the
Hollywood Bowl in July 1954 with
Richard Rodgers conducting. On April 19, 1946, Dickey sang "
The Star-Spangled Banner" for the opening game of the
1946 New York Yankees season; an occasion which marked the premiere of the newly renovated
Yankee Stadium which had added several thousands of box seats. In 1949, she returned to the St. Louis Municipal Opera to perform the role of Nadina in
Oscar Straus's
The Chocolate Soldier. In 1950, she starred in the title role of
Harry Tierney Rio Rita at the
Bucks County Playhouse with
David Atkinson as Captain Jim Stewart. That same year she starred in the
NBC television variety program
Ford Star Review with comedian
George DeWitt. She returned to performing in night clubs, with engagements at the Flame Room of the Hotel Radisson Minneapolis in 1950 and the Cotillion Room of
The Pierre hotel in 1951. In 1951, she headlined at the
Empress Club in London. She also starred in a 1951 variety show at the
Roxy Theatre with ventriloquist
Jimmy Nelson. In September 1952 Dickey was engaged as the standby actress for
Constance Carpenter as
Anna Leonowens in the original Broadway production of Rodgers and Hammerstein's
The King and I after the death of
Gertrude Lawrence. She performed the role for two weeks in August 1953 while Carpenter was on vacation in England. She took over the role when Carpenter left the show in January 1954, and continued in the part until
Patricia Morison succeeded her in March 1954. She continued to portray the role of Leonowens frequently in regional theatres, starring in productions in Atlanta (1956), Louisville (1956), Chicago (1956), and the
Berkshire Theatre Festival (1962). In 1959, she starred as Louisa Giovanni in
Robert Wright and
George Forrest's
Song of Norway at
The Little Theatre on the Square. She returned there in 1961 to star in
Take Me Along. ==Later life==