Vernon joined the CSO in 1986, coming from the Philadelphia Orchestra, where he had served since 1981. Prior to that, Vernon held identical posts with the Baltimore Symphony from 1971 to 1980 and the San Francisco Symphony from 1980 to 1981. Vernon is also a former faculty member of The Catholic University of America, Temple University, New School of Philadelphia, the Philadelphia College of Performing Arts (now University of the Arts (Philadelphia)), and the Curtis Institute of Music.
