After completing his degree at Penn State, scouts from the Major Leagues considered Van Atta to be a promising prospect and in 1928 the New York Yankees negotiated a contract and paid a signing bonus of $250. However, Miller Huggins, the Manager of the Yankees did not trust Van Atta's talent and sent him to the minors. In 1928, he played for the Hartford Senators, a minor-league team based in Connecticut and affiliated with the Eastern League. He played for the next four seasons with the St. Paul Saints, a Triple-A level minor-league baseball team from Minnesota in the American Association (now defunct).