It’d be a good question to pose to Norman Rockwell, that famed painter of quaint, funny scenes depicting mid-20th-century American life. His works were reproduced ceaselessly on magazine covers in the 1930s, ’40s, and ’50s—and their appeal was immense. By the 1940s, Time magazine had already christened Rockwell as “probably the best-loved U.S. artist alive,” while the New York Times had affectionately compared his paintings to Mark Twain’s novels.