E. R. Braithwaite

Edward Ricardo Braithwaite (June 27, 1912 – December 12, 2016) was a Guyanese novelist, writer, teacher, and diplomat. He is best known for his stories of social conditions and racial discrimination against black people. 
He is the author of the 1959 autobiographical novel "To Sir, With Love" which was made into a 1967 movie, "To Sir, with Love", starring Sidney Poitier. E. R. Braithwaite hated the movie, particularly because his novel's interracial relationships and racial issues were not included in the movie's screenplay, although the royalties from the movie made him wealthy.
Braithwaite was born in Georgetown, Guyana. He died on December 12, 2016 at a hospital in Rockville, Maryland from complications of a heart attack at the age of 104.