Modern Hagiography
Lives of the Saints by Alban Butler.
Lives of the Saints by Sabine Baring-Gould.
Medieval Hagiography
The Cult of Saints in Late Antiquity Database
The account of their martyrdom should be in Victor of Vita. History of the Vandal Persecution, but it is not in the public domain.
Art & Architecture
Caractéristiques des saints dans l’art populaire by Charles Cahier – meule.
Nihil sub sole novum 