In 1907, Moulton signed a four-year contract with Stanford at a salary of $1,800 per year. In 1911, he signed a three-year contract at a salary of $2,000 per year. When the 1911 contract was announced, the "Los Angeles Times" reported, "Although Stanford did not have a successful year in athletics, from the standpoint of victories, 'Dad' is just as popular as ever among the students. He is a fixture at Stanford." However, by the summer of 1912, the "Los Angeles Times" reported that students had concluded that greater success could be achieved with a younger trainer, although Moulton would likely be permitted to remain at Stanford for as long as he wished. With the exception of a year in 1915 when Moulton worked on the Panama–Pacific International Exposition, Moulton remained affiliated with Stanford until his death in 1922.