North American Aviation was building fighter planes as early as the 1930s, but it wasn't until the early 1940s that this particular plant played such a large role in the outcome of WWII. This plant, known as NAA-K ,built thousands of planes intended for training purposes, along with earlier versions of the B-25 bomber. To keep up with production, the company hired thousands of laborers across the United States. With the lingering effects of the Great Depression, citizens were eager to get back to work and the plant hired both women and men.
Construction of the B-25 bomber began in the summer of 1941 and continued through 1945. The B-25 was a significant factor in America's victory in the war. In fact, a squadron of B-25s that were modified to take off from an aircraft carrier and fly a long distance dropped the first bombs on Japan in the Doolittle Raid. While this attack did little to alter the war, it lifted American spirits following the attack on Pearl Harbor and marked the first time U.S. bombers attacked the Japanese islands. Commander Doolittle was later awarded the Medal of Honor for the attacks.
The area around the North American Aviation Plant was also home to a small Air Force installation that was used up into the late 1940s. Employees of the plant were given Army and Navy awards due to their excellence in building the planes that made a drastic difference during WWII. After the war, the plant converted to civilian construction with General Motors converting the plant to produce automobiles.