Molly his third wife stated, "he died of being 84 years old." .
Throughout Rockwell's 84 years of life he accomplished many things. In his 47 year career at the Evening Post he completed 4,000 illustrations. He also produced 332 covers for the Evening Post and the Post could automatically increase its print order by 250,000 copies when an issue had a cover by Rockwell. Eighty magazines used his cover illustrations but, by far, no paintings by an American were ever published on such a global scale as Rockwell's "Four Freedoms." The "Four Freedoms" were Freedom of Speech, Freedom to Worship, Freedom from Want, and Freedom from Fear. These original drawings were used by the United States Treasury during World War two to raise money for the war efforts. The war bonds circulated in a 16 city tour seen by 1,222,000 people who purchased over $133,000,000 in bonds with the "Four Freedoms" design. He illustrated 33 covers for the Post during the war. Rockwell was also commissioned to illustrate over 40 books including Adventures of Tom Sawyer and Huckleberry Finn. Rockwell also illustrated the Boy Scout calendars from 1925 to 1976. A few examples of his work included booklets, catalogs, posters (particularly movie promotions), sheet music, stamps, playing cards, and murals such as Yankee Doodle Dandy which was completed in 1936 for the Nassau Inn in Princeton, New Jersey. .
A few of Rockwell's accomplishments include being named artist of the year in 1969 by his colleagues of the Artists Guild of New York. In 1976, former President Ford presented him with the Medal of Freedom, the nation's highest decoration for civilian Americans. It was also stated that his work has been reproduced more often than Michelangelo, Picasso and Rembrandt put together. This was a major compliment for him and his career. In 1943 Rockwell had a devastating break in his career. His studio was completely destroyed by a fire.