It seems to me that the later, 1987, Ordinary Form Arundel and Brighton Calendar is a great deal more welcoming to our English Reformation Martyrs than the earlier, rather stingy, Extraordinary Form Calendar.
In using the Extraordinary Form in our present context, what is one to do? Need one simply stick to the stingy 1949 Calendar authorised for Souhwark? I think not. The principles of law embodied in Canon 19 seem to me to suggest the question: "If the SCR had still be supervising EF diocesan Calendars in 1987, what would it have done?"
It is surely reasonable ad interim to utilise cautiously the 1987 Novus Ordo diocesan supplement, not as being an authoritative intervention in the Old Calendar, which it is not, but as being a strong indication of what the SCR would have authorised had it addressed the question of dealing with (a) a brand new diocese, and (b) a new batch of beati. Of course, dates might need to be adjusted if they are already occupied on the older Calendar: again, this is simply in accordance with long-standing precedent.
The Group commemoration of "The Blessed Martyrs of Sussex" is a completely reasonable disposition, based upon the much older "The Blessed Martyrs of England and Wales". The point is that Beati are, historically, supposed to enjoy a much more limited cultus than that of Sancti. So it is reasonable to group them together rather than assigning to each of them a separate feast day throughout an entire diocese.
But there is every reason why each of them should have an individual observance in places with which they are closely connected, if the EF rubrics can admit them on that day.
To be continued after a few days.