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.
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.
Little Lives of the Great Saints by John O’Kane Murray.
Stories of the Saints for Children [First Series] by Mary Seymour.
Memorials of the Blessed: A Series of Short Lives of the Saints by Charles B. Fairbanks.
Patron Saints by Eliza Allen Starr.
Book of Saints and Heroes by Mrs. Lang.
Writings of Saint Vincent de Paul
His writings in French take up many volumes, which you can easily find on archive.org.
Art & Architecture
Sacred and Legendary Art volume II by Mrs. Jameson.
A Handbook of Christian Symbols and Stories of the Saints as Illustrated in Art by Clara Erskine Clement.
The Saints in Art with Their Attributes and Symbols, Alphabetically Arranged by Margaret E. Tabor.
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.
Meditations for the Use of the Secular Clergy by Pierre Chaignon.