Kammala wannan jumla: A matsayin yarinya actress, Garner yana da ta farko fim rawa a 1938. A cikin
18th Academy Awards, Garner ta lashe lambar yabo ta Academy Juvenile, tana mai yaba wa gudummawar da ta bayar ga fim a shekarar 1945, musamman a cikin "A Tree Grows in Brooklyn" da "Junior Miss".