St. Peter's Cemetery is on the south side of Tonnelle Ave., just before you get to the Tonnelle Circle and the ramp to the Pulaski Skyway. It is a very sharp right off of Tonnelle Ave. I don't think I've ever seen the gates to St. Peter's open so I'd call Holy Name Cemetery in Jersey City to find out when St. Peter's is open. (Holy Name has St. Peter's records).