8 April – Saint Julie Billiart

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

The Holiness of the Church in the Nineteenth Century: Saintly Men and Women of Our Own Times by Constantine Kempf.

Great Catholics

Writings of Saint Julie Billiart

The Educational Ideals of Blessed Julie Billiart (including a brief biography)

Maxims of Saint Julie Billiart (in French, other primary source documents also in Appendix)

Consecration made by Saint Julie Billiart (in French)

Art & Architecture

Wikimedia Commons

Devotions

Footage of the Canonization of Julie Billiart (1969)

8 April – Saint Perpetuus

Modern Hagiography

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Character Calendar

Pictorial Lives of the Saints

La vie des saints

La vie des saints

Medieval Hagiography

Acta Sanctorum

Two Councils of Tours from the beginning of his bishopric (Latin, pdf page 487 & 489)

Gregory of Tours’ History of the FranksII.14 His episcopate, including building a new church over the tomb of Saint Martin & II.26 His death & X.31 The feasts he instituted

Writings of Saint Perpetuus

Documenta Catholica Omnia

Art & Architecture

Portail Biblissima

Saints and their Attributes
Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – eglise.

Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth.