"The King and I" was derived from Margaret Landon's 1944 book her "and the King of Siam"
THE KING AND I. Inspiration: 1944 novel Anna and the King of Siam by Margaret 
Landon, which is in turn derived from the memoirs of Anna... [DOC] [TLE] Best Adapted Screenplay: 1946 | News from the Boston Becks [PAR] Oct 6, 2015 ...