Ring Lardner Jr.
The son of a famed humorist, screenwriter Ring Lardner, Jr. (born Ringgold Wilmer Lardner, Jr.) started out as a reporter for the New York Daily Mirror. Prior to that, he had briefly attended Princeton. He eventually became a publicist for David Selznick in Hollywood and after that worked uncredited as a script doctor before becoming a full-fledged screenwriter working alone or in collaboration. Lardner shared an Oscar in 1942 for Woman of the Year and his career looked quite promising until he refused to cooperate with the witch-hunts of the House Un-American Activities Committee and became one of the Hollywood Ten. For his refusal, Lardner spent a year in prison and then was blacklisted until the mid '60s. Though officially banned from Hollywood, Lardner continued working under pseudonyms and also worked uncredited. Lardner made a big comeback in 1970 when he wrote the script for M*A*S*H.