Complex sentence: She began her career as a California correctional officer in 1978 at San Quentin State Prison and rose through the ranks to be appointed Warden of San Quentin State Prison by Governor Davis in 1999.
Split into simpler sentences: She began her career as a California correctional officer in 1978 at San Quentin State Prison. Having risen through the ranks, she was appointed Warden of San Quentin State Prison by Governor Davis in 1999.