First produced in 1951, the musical is based on Smith's autobiographical novel A Tree Grows in Brooklyn (1943), but when Shirley Booth was cast as Aunt Cissy (spelled Sissy in the book), a secondary character in the novel, the prominence of this role was expanded and tailored to Booth's comedic talents, diminishing the relative importance of other characters, in particular young Francie, through whose eyes the plot of the novel unfolds.
