Lives of the Saints by Alban Butler.
Lives of the Saints by Sabine Baring-Gould.
Our Birthday Bouquet Culled from the Shrines of the Saints and the Gardens of the Poets by Eleanor C. Donnelly.
Pictorial Half Hours with the Saints by Auguste François Lecanu.
Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden.
An Alphabet of Saints by Robert Hugh Benson, Reginald Balfour, and Charles Ritchie.
The Life of Bishop Wilfrid by Eddius Stephanus (published in 1927, will eventually be in the public domain)
Bede, Ecclesiastical History
Art & Architecture
Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth.