Saints of September: A guide to the various calendars!

September,
Les Très Riches Heures du duc de Berry 

For those interested in adding additional feasts to the Benedictine 1963 calendar, or utilising the Diurnal in conjunction with later versions of the calendar,  I've done a summary listing of the various calendars for the month of September below.

Can you add feasts to the Benedictine calendar?

By way of context, the decree Cum Sanctissima gave permission for saints canonised after 1962 to be celebrated in the earlier form of the Office, as well as for the inclusion of other feasts included in previous books and/or the Martyrology to be celebrated as Class III feasts.

Strictly speaking, it is supposed to be done in both Mass and Office of the day, so you should follow whatever your monastery or parish church is doing.

For modern calendar feasts that do not have propers in the Diurnal, you can simply utilise the appropriate Common (and where appropriate, take the collect from your Missal or Roman Breviary

Pre-1960 Benedictine calendar

For September, the main differences between the 1960 and earlier calendars relates to assorted saints remembered in memorials only (though in the earlier books memorials were generally marked at both Lauds and Vespers, not just the first!).  

And as you will see if you look down the list, several victims of the 1960 'pruning' were (as for the rest of the year) female saints, the most important of whom is St Thecla, once generally regarded (in the East at least still), as the first female monastic saint.  

Her very early Vita (dating from the second century) was widely circulated in the early centuries of the Church, but met some early, rather misogynistic opposition in the West led by Tertullian, but her cult was commented on favourably by many others, such as St Augustine.  Twentieth century scholarship was similarly inclined to downplay her historicity, and she was removed from the General Calendar in 1969, but, as in several other cases, the tide has turned again recently, at least terms of in academic scholarship.

Day of September	1960 Benedictine	1962 Roman	1953 Benedictine	Ben Con/ 2025 Roman (where extra/different)	Other
1		St Giles, Memorial (Abbot)
2		St Stephen, Cl 3 (Confessor)
3	St Pius X, Cl 3	St Pius X, Cl 3		St Gregory the Great F (March 12, MD [77])
4					St Marcellus, Martyr
5		St Lawrence Justinian, Cl 3 (Confessor)		St Teresa of Calcutta OM (Virgin)
6					St Zachariah (OT prophet)
7
8	Nativity of the BVM		Nativity of the BVM with a simple Octave; St Hadrian, Memorial	Nativity of the BVM, F
9	St Gorgonius, Memorial	St Gorgonius, Memorial	St Gorgonius	St Peter Claver, Confessor, OM
10		St Nicolas of Tolentino, Cl 3 (Confessor)
11	SS Protus and Hyacinth, Memorial	SS Protus and Hyacinth, Memorial	SS Protus and Hyacinth, M		St Theodora
12		Most Holy Name of Mary, Cl 3	Most Holy Name of Mary	Most Holy Name of Mary OM
13				St John Chrysostom, M (Jan 27, MD [43])
14	Exaltation of Holy Cross, Cl 2	Exaltation of Holy Cross, Cl 2	Exaltation of Holy Cross, SS Cornelius and Cyprian Memorials (1960 Ben: 16 Sept)	Exaltation of Holy Cross, F
15	Seven Sorrows of the BVM, Cl 3	Seven Sorrows of the BVM, Cl 2	Seven Sorrows of the BVM; St Nicodemus, Memorial	Seven Sorrows of the BVM, M
16	SS Cornelius and Cyprian, Memorial	SS Cornelius and Cyprian, Cl 3	SS Euphemia, Lucy & Germanianus, Memorial	SS Cornelius and Cyprian, M
17	St Hildegard (V, Doctor), Memorial	Imprinting of the Holy Stigmata on the body of St Francis, Memorial (Confessor)	St Hildegard	St Hildegard, OM or St Robert Bellarmine, OM (MD: 13 May)
18		St Joseph of Cupertino, Cl 3 (Confessor)
19		St Januarius and companions, Cl 3 (Martyrs)		St Januarius, OM
20		St Eustace and companions, Memorial (Martyrs)	Vigil of St Matthew	St Andrew Kim, Paul Chong and companions (the Korean martyrs)
21	St Matthew, Cl 2	St Matthew, Cl 2	St Matthew	St Matthew, F
22	St Maurice and Companions, Memorial	St Thomas of Villanova, Cl 3 (Confessor bishop)	St Maurice and Companions
23	St Linus, Memorial	St Linus, Cl 3 (Pope martyr)	SS Linus and Thecla (Virgin martyr), Memorials	St Pius of Pietrilcina, Confessor, M
24		Our Lady of Ransom, Memorial
25
26		SS Cyprian and Justina, Memorial	SS Cyprian and Justina, Memorial	SS Cosmas and Damian OM (Sept 27)
27	SS Cosmas and Damian, Memorial	SS Cosmas and Damian, Cl 3 (Martyrs)	SS Cosmas and Damian, Memorial	St Vincent de Paul, M (July 19, MD [195])
28		St Wenceslas, Cl 3 (Martyr)		St Wenceslaus, Martyr, OM or St Lawrence Ruiz and companions OM (Japanese martyrs)
29	Dedication of St Michael the Archangel, Cl 1	Dedication of St Michael the Archangel, Cl 1	Dedication of St Michael the Archangel	St Michael and all the Angels, F
30	St Jerome, Cl 3	St Jerome, Cl 3	St Jerome	St Jerome, M

 Key: S=Solemnity (Class I); F= Feast (Class II); M=Memorial (Class III), OM = Optional memorial (Class III or Memorial).