19 July – Saint Macrina the Younger

by Gregorio Stassi in Grottaferrata
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Dictionary of Saintly Women

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.

Tradition in Action

Contemporary Hagiography

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Gregory of Nyssa, Life of Saint Macrina

Gregory of Nyssa, On the Soul and the Resurrection

Art & Architecture

Catalogo generale dei beni culturali

Vatican Colonnade

Saints and their Emblems

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.

19 July – Saint Justa & Saint Rufina

Painting by Murillo
Saint Rufina
Saint Justa
painting by Goya
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologum Romanum (17 July)

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Light from the Lowly volume II by Francis Butina.

Medieval Hagiography

BHL, Supplement 

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Art & Architecture

Index of Medieval Art

Portail Biblissima

Guide to Christian Iconography: Images, Symbols, and Texts 

Google Arts & Culture 

Post-Biblical Saints Art Index
Saints and their Attributes
Saints and their Emblems

Sacred and Legendary Art volume I by Mrs. Jameson.

A Handbook of Christian Symbols and Stories of the Saints as Illustrated in Art by Clara Erskine Clement.

Lives and Legends of the Great Hermits and Fathers of the Church, with Other Contemporary Saints by Mrs. Arthur Bell.

The Saints in Art with Their Attributes and Symbols, Alphabetically Arranged by Margaret E. Tabor.

Saints and their Symbols: A Companion in the Churches and Picture Galleries of Europe by E. A. Greene.

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.