Anglo-Indian or Indian-born British travel writer, educator and social activist had her story loosely adapted into an American animated musical film directed by Richard Rich? 
The King and I (1999 film): The King and I is a 1999 American animated musical film directed by Richard Rich and written by Peter Bakalian, Jacqueline Feather, and David Seidler, loosely adapted from the Anna Leonowens story, and uses songs and some of the character names from Richard Rodgers and Oscar Hammerstein II's stage musical of the same name. Anna Leonowens: Anna Harriette Leonowens (born Anna Harriet Emma Edwards; 5 November 1831 – 19 January 1915) was an Anglo-Indian or Indian-born British travel writer, educator and social activist.
Anna Leonowens