[3] In 1949, she made her Broadway debut in Richard Lewine's musical revue Make Mine Manhattan at the Broadhurst Theatre.
[3] Gamson returned to New York City in 1953, at which time she began to appear regularly with the American Ballet Theatre where she notably danced the role of the cowgirl in Aaron Copland's and Agnes DeMille's Rodeo.
She also worked and performed with Anna Sokolow on Broadway and portrayed Sonya in the original production of Rodgers and Hammerstein's Pipe Dream.
Annabelle spent the next several years devoted to raising their children, Rosanna and David, who is a record producer renowned for his work with Scritti Politti.
In 1974 she presented a highly lauded program of Duncan works at the American Theater Laboratory in New York City.
"[3]Following this critical success, Gamson drew further acclaim for her performances of the works of German expressionist Mary Wigman and American choreographer Eleanor King.