The Wayback Machine - https://web.archive.org/web/20190610023620/http://www.oremus.org/calendar/index05.html

May

1    Philip and James, Apostles
2    Athanasius, Bishop of Alexandria, Teacher of the Faith, 373
3    Paul Moore, Bishop of New York, 2003
4    Monnica, Mother of Augustine of Hippo, 387
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8    Julian of Norwich, Spiritual Writer, c.1417
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12    Florence Nightingale, 1910
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14    Matthias the Apostle
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19    Dunstan, Archbishop of Canterbury, Restorer of Monastic Life, 988
20    Alcuin of York, Deacon, Abbot of Tours, 804
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24    Jackson Kemper, First Anglican Missionary Bishop in the United States, 1870
25    The Venerable Bede, Monk at Jarrow, Scholar, Historian, 735
26    Augustine, first Archbishop of Canterbury, 605
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30    Apolo Kivebulaya, Priest, Evangelist in Central Africa, 1933
31    The Visit of the Blessed Virgin Mary to Elizabeth