The Chronography of 354 AD. Part 11: Commemorations of the Bishops of Rome from AD 255 to AD 352.   MGH Chronica Minora  I (1892), pp.70. 

 DEPOSITIO EPISCOPORVM 

V f. 46 contd.
		VI	kal.	Ianuarias	Dionisi, in Callisti		† 269
		III	kal.	Ianuar.	Felicis, in Callisti		† 274
		prid.	kal.	Ianuar.	Silvestri, in Priscillae		† 335
		IIII	idus	Ianuarias	Miltiadis, in Callisti		† 314
		XVIII	kal.	Feb.	Marcellini, in Priscillae		† 304
		III	non.	Mar.	Luci, in Callisti		† 255
		X	kal.	Mai.	Gai, in Callisti		† 296
		IIII	non.	Augustas	Stephani, in Callisti		† 255
		VI	kal.	Octob.	Eusebii, in Callisti		† 310/311
		VI	idus	Decemb.	Eutychniani, in Callisti		† 283
			non.	Octob.	Marci, in Balbinae		† 336
		prid.	idus	Apr.	Iuli, in via Aurelia miliario III, in Callisti		† 352

Notes

This table indicates the dates each year on which the Roman church celebrated the ordination of its previous bishops. Note that the last two seem to have been added later, as they are in chronological order of year rather than in the sequence of the year. Mommsen suggests that this is evidence of an earlier recension of at least some of the material of the Chronography, perhaps around 335 or a little later. This text is found in the Brussells (B), Vienna (V) and Amiens (G) manuscripts.