7 February – Blessed Thomas Sherwood

Ecclesiæ anglicanæ trophæa
Martyrs to the Catholic faith : memoirs of missionary priests and other Catholics of both sexes that have suffered death in England on religious account from the year 1577 to 1684 / by Bishop Challoner v.1
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

A Menology of England and Wales

Mementoes of the English Martyrs and Confessors for Every Day in the Year

Memoirs of Missionary Priests

3 February – Saint Ansgar

Panel painting of Saint Ansgar
enbarelsekyrkan, Saltsjöbaden, Stockholm County, Sweden. Sanctuary. Painting of Saint Ansgar and Saint Botvid by Olle Hjortzberg
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

La vie des saints

Tradition in Action

Medieval Hagiography

BHL, Supplementum

Acta Sanctorum

Writings

Documenta Catholica Omnia

Art & Architecture

Hammaburg and Ansgar (online exhibition)

Ansgarskapellet 

Saints and their Attributes
Saints and their Emblems

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