Lives of the Saints by Alban Butler.
Lives of the Saints by Sabine Baring-Gould.
Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden.
Stories of the Saints Fourth Series Saints of the Early Church by Mary Seymour.
Bede, Ecclesiastical History (search for other mentions)
Art & Architecture
The Saints in Art by Joseph Maria von Radowitz.
Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth.