Sounds a lot like my family. They are also Catholic. I was able to get the marriage record of my gggrandfather from the Boston Archdiocese. They have no main index though, so you need the marriage date, names, and either the parish or the priest. The additional piece of info on the record were the wittnesses though, and it did not give me clues to the Daley side of the family. John J. Daley is still a mystery for me.