As an advocate of education, Bradley had high regard for Anna Leonowens, the teacher of Mongkut's children. Bradley admired the perseverance of Leonowens even though she was not treated with respect from the Siamese. Bradley did admit, however, that Leonowens did not have a significant impact on Siam, an opinion at odds with hers which she recorded in her two volumes of memoirs beginning with "The English Governess at the Siamese Court" (1870), later fictionalized in Margaret Landon's novel "Anna and the King of Siam" (1944).