WHAT'S IT ALL ABOUT, SYBIL? by Sybil Jason (paperback)
Child actress Sybil Jason was initially considered a serious rival to Shirley Temple in the late 1930s after her work in theater, on Old Time Radio, and on recordings led to a supporting role in Barnacle Bill (1935).
A Warner Bros. test led to a contract, and her American film debut took place in Little Big Shot (1935), directed by Michael Curtiz and co-starring Glenda Farrell, Robert Armstrong, and Edward Everett Horton.
Jason followed this with supporting roles opposite some of Warner Bros. most popular stars, including Kay Francis in I Found Stella Parish (1935), Al Jolson in The Singing Kid (1936), Pat O'Brien and Humphrey Bogart in The Great O'Malley (1937), and again with Kay Francis in Comet Over Broadway (1938), among other films.
Sybil’s career ended after minor parts in The Little Princess (1939) and The Blue Bird (1940) — ironically with Shirley Temple.
Sybil has a lot to say about those years of Hollywood with friends Ian Hunter, Guy Kibbee, May Robson, Rudy Vallee, Jane Wyman, Patrick Swayze, Johnny Green, Frieda Inescort, Beverly Roberts, and others.
In Memory of Sybil Jason, from the New York Times