The Archdiocese of New York in conjunction with Findmypast has published indexes containing over eight million records dating from 1785 to 1915. These records cover the boroughs of Manhattan, the Bronx, and Staten Island in New York City. Westchester, Ulster, Sullivan, Rockland Putnam, Orange and Dutchess counties are also included.
New York Roman Catholic Parish Baptisms
https://search.findmypast.ie/search-world-Records/new-york-roman-catholic-parish-baptisms
New York Roman Catholic Marriages
https://search.findmypast.ie/search-world-records/new-york-roman-catholic-parish-marriages
Find My Past info on Catholic Heritage Archive https://www.findmypast.com/catholicrecords