The original marriage index was prepared to show only the names of the brides and grooms and date of marriage. Now, most of the parishes have parent names included as well. If that wasn't enough, the index may include the place the person was from-- a valuable resource for those trying to make the connection between the US and Poland. If images are available online, the LDS image number may also be given to speed up your lookup. The biggest parishes in the database are St. John Cantius, Holy Trinity, and St. Stanislaus Kostka in Chicago.