He had great confidence in Saint Joseph and recommended prayer to him to all who were sick. So many were cured that Brother André himself was acclaimed as a miracle-worker, and when he died on 6 January 1937, a million people filed past his coffin. He was canonized by Pope Benedict XVI on 17 October 2010. See the article in Wikipedia.

  Pontian’s successor, Fabian, had both bodies brought back to Rome for burial, and Pontian and Hippolytus were already being venerated by the Roman Church by the start of the fourth century. Hippolytus was the most important theologian and the most prolific religious writer of the Roman Church in the pre-Constantinian era. Unfortunately most of his works have been lost or are known only through scattered fragments, while much has survived only in old translations into Oriental and Slavonic languages, tangled up with the writings of other authors. The fact that Hippolytus wrote in Greek means that later, when that language was no longer understood in Rome, the Romans lost interest in his writings, while in the East they were read long after, and made the author famous.

  The “Discourse on the Theophany” [or Epiphany] was probably wrongly attributed to Hippolytus, which makes it hard to get a sense of him as a preacher; but it is of a similar period and outlook.