It all began in 1941 while Wes was working as a counselor at a YMCA Boy's Camp on the Chesapeake Bay. While there, he installed a public address system to summon stray campers. This sound system was equipped with a powerful amplifier and three horn loudspeakers. Here Wes began his first experiments with vocal sound effects. During his career Harrison has contributed sound effects to many films such as Peter Pan, 20,000 Leagues Under The Sea and the Tom and Jerry cartoon series.