A citizen of the United States is an American. United States, American and U.S. refer to the country adjectivally (American values, U.S. forces). American rarely refers to subjects not connected with the United States.
Costume Department | Actress. Anna Wintour was born in Hampstead, London, England, the daughter of an American mother, Eleanor Trego (Baker), and an English father, Charles Wintour, former Editor of the Evening Standard. She is from an upper-class family, with many prominent ancestors.
The plot revolves around Welsh widow Anna Leonowens (Deborah Kerr) and her young son traveling to Siam in the early 1860s to teach the young children of the arrogant, headstrong King Mongkut (Yul Brynner), who wishes to learn Western culture (to the dismay of his court advisors).