Lives of the Saints by Alban Butler.
Lives of the Saints by Francis Weninger.
Lives of the Saints by Sabine Baring-Gould.
The Liturgical Year by Dom Guéranger.
Prudentius, Peristephanon (?)
Jerome, De viris illustribus (61)
Writings by Saint Hippolytus
The Refutation of All Heresies (traditionally attributed to Saint Hippolytus, now unattributed)
Art & Architecture
The Saints in Art by Joseph Maria von Radowitz.