Among her many other roles with the NYCO were Gretel in Humperdinck's Hänsel und Gretel, Liù in Puccini's Turandot, Musetta in Puccini's La bohème, Norina in Donizetti's Don Pasquale, Olympia in Offenbach's Les contes d'Hoffmann, Sophie in Richard Strauss's Der Rosenkavalier, and Susanna in Mozart's Le nozze di Figaro.

In 1949 she sang Gilda with the Philadelphia La Scala Opera Company with Cesare Bardelli as Rigoletto, Rudolf Petrak as the Duke of Mantua, and conductor Giuseppe Bamboschek.

[1] In 1956 Bishop sang Lucia again opposite Jon Vickers's Male Chorus and Regina Resnik's Lucretia at the renowned Stratford Festival in Canada.

In 1956, again with NBC Opera Theatre, she portrayed Papagena in an English-language version of Mozart's The Magic Flute, a production which also featured Leontyne Price as Pamina, in an almost unheard-of 1950s example of television "color-blind casting".

She portrayed Queen Popotte in the United States premiere of Offenbach's Le Voyage dans la Lune in 1958, which was also the very first production mounted by Sarah Caldwell's Opera Company of Boston.

The production was so well received that the company was invited to present the work on the lawn of the White House in a performance attended by President Dwight D. Eisenhower.

Extraordinarily impish in appearance, she not only sang like an inspired choirboy but succeeded in bringing wonder and a heartbreaking confusion into the scenes when the small hero is seized with the first pangs of humanity.

"[1] Beginning in the late 1950s, Bishop became highly active working as a stage director, competition judge, and voice teacher.

Bishop notably staged the world premiere of David Amram's Twelfth Night at the Lake George Opera in 1968.