He was born July 28, 1915, at Deer Lodge, Montana, the son of John and Sue Cunningham.
[1][2] His most famous work was "The Tin Star", a short story which appeared in Collier's Magazine in 1947.
It was adapted into the film High Noon in 1952, which starred Gary Cooper (Academy Award, Best Actor) and Grace Kelly.
The adapted screenplay by Carl Foreman was nominated for an Academy Award.
His sister Julia Cunningham was an author of children's literature.