not sure about children, but sometime infants names weren't recognized. They might just same the mothers name and infant male, or baby girl SURNAME. Holy Sepulchre is run by the arch diocese of Phila., and I find the record good, but hard to retrieve from them unless you know what they have already. Give it another try? AM going to reach, but their might be an issue too with rites of catholics as to how much recognition is paid, the year (how long ago may affect how strict they were), and cost to family. Some phila cemeteries are very forthcoming, some are not. This one is an active cemetery.