Complex sentence: George Utley's first positions in the library science field were at the Watkinson Library on the campus of Trinity College, Hartford, Connecticut and then the Maryland Diocesan Library in Baltimore, Maryland.
Split into simpler sentences: George Utley's first position in the library science field came at the Watkinson Library on the campus of Trinity College, Hartford, Connecticut. After Watckinson, Utley was employed by the Maryland Diocesan Library in Baltimore, Maryland.