Hi, Mary Ann —
Technically true, but part of the point of having a Confirmation name is to have a patron saint to pray for you and serve as a sponsor. Dead dogs cannot do this, so I wouldn't recommend the name. If you're going through the trouble of choosing a Confirmation name, which cannot be changed later, it's best to choose a Saint who is alive in Heaven and who is able to intercede for you and adopt you, so to speak. It's not strictly necessary to choose a saint, but it kind of defeats the pious tradition and it deprives you of a Heavenly intercessor and sponsor.
DJ, I recommend you read the Catechism of the Catholic Church about the Communion of Saints and what it means.
Mike Humphrey, our Web Administrator, and fearless leader used to run a free program that sent Catechisms to seeking Protestants and non-Christians but no longer has the financial or operational means to do this anymore. Nevertheless, if you wish to go deeper, consider buying a cheap copy of the Catechism of the Catholic Church to learn everything we believe as faithful Catholics.
Saints are those who have set themselves apart as servants of God and entered into communion with Him. The Communion of Saints is a spiritual family of persons who:
- pray for one another
- share one another's merits
- love one another
- support one another in Christ
- are sharers in the divine nature, and
- are part of the One, Living Body of Christ.
It is comprised of humans who are saved from sin in the economy of salvation (including those in the grace of God on Earth) plus those angels who never sinned.
For this reason, the custom arose of choosing someone in the Communion of Saints in Heaven to help initiate us into the Communion of Saints, a patron or sponsor. This used to be codified in law, but I don't believe it is anymore. Some argue that the Confirmation name should be the baptismal name.
It's up to you what you want to do, but just be aware of the traditions. I never got to choose what I now believe to be a proper Confirmation name because no one bothered to explain these things to me and it was badly presented to me.
The best I can do, is make sure you make an informed decision.