April IV – St. Isidore, Bishop of Seville (A. D. 606) – The Lives of the Saints (Rev. Butler)
April V – St. Vincent Ferrer, Confessor (A. D. 1419) – The Lives of the Saints (Rev. Butler)
April VII – St. Aphraates, Anchoret (Fourth Age) – The Lives of the Saints (Rev. Butler)
April IX – St. Mary of Egypt (Fifth Age) – The Lives of the Saints (Rev. Butler)
April X – St. Bademus, Abbot and Martyr (A. D. 376) – The Lives of the Saints (Rev. Butler)
April XI – St. Leo the Great, Pope (A. D. 461) – The Lives of the Saints (Rev. Butler)
April XII – St. Sabas the Goth, Martyr (A. D. 372) – The Lives of the Saints (Rev. Butler)
April XIII – St. Hermenegild, Martyr (A. D. 586) – The Lives of the Saints (Rev. Butler)
April XV – St. Peter Gonzales, Confessor (A. D. 1246) – The Lives of the Saints (Rev. Butler)
April XVI – Eighteen Martyrs of Saragossa (A. D. 304) – The Lives of the Saints (Rev. Butler)
April XVII – St. Anicetus, Pope and Martyr (Second Age) – The Lives of the Saints (Rev. Butler)
April XIX – St. Leo IX, Pope and Confessor (A. D. 1054) – The Lives of the Saints (Rev. Butler)
April XXII – Ss. Soter and Caius, Popes and Martyrs – The Lives of the Saints (Rev. Butler)
April XXIII – St. George, Martyr (About the year 303) – The Lives of the Saints (Rev. Butler)
April XXIV – St. Fidelis of Sigmarengen, Martyr (A. D. 1622) – The Lives of the Saints (Rev. Butler)
April XXV – St. Mark, Evangelist (The Lives of the Saints – Rev. Butler)
April XXVI – Ss. Cletus and Marcellinus, Popes and Martyrs (The Lives of the Saints – Rev. Butler)
April XXVIII – St. Vitalis, Martyr (About the year 62) – The Lives of the Saints (Rev. Butler)
April XXIX – St. Peter, Martyr (A. D. 1252) – The Lives of the Saints (Rev. Butler)
April XXX – St. Catharine of Sienna, Virgin (A. D. 1380) – The Lives of the Saints (Rev. Butler)
