Auxiliary Bishops Robert J. Brennan, left, and Nelson J. Perez, right, of Rockville Centre, smile as they process from St. Agnes Cathedral, Rockville Centre, following their episcopal ordination July 25. Bishop Brennan, 50, is the vicar general of Rockville Centre. Bishop Perez, 51, was a pastor in the Archdiocese of Philadelphia when he was named a bishop.