St. Tarcisius (3rd c.) was a boy who lived during the persecution of Roman Emperor Valerian. When the Christians would secretly celebrate daily Mass in the catacombs, a deacon would be sent to carry the Holy Eucharist to the Christians waiting in prison to be executed. At one point there was no deacon to send, and so St. Tarcisius, a twelve-year-old acolyte, was sent to carry the "Holy...