Iulius' filiation (C. f. C. n.) depends only on Münzer's suggestion that he was possibly a son of the Decemvir of 451. Diod. gives Verginius the praenomen {Gr} and the cognomen {Gr}. See 434, Consuls. (Broughton MRR I)
Liv. 4.21.6 and 10; Diod. 12.49.1; Chr. 354 (Iulio II et Tricoisto); Fast. Hyd. (Iulio et Verginio), so also Chr. Pasc.; Cassiod.; Degrassi 95, 370f. (Broughton MRR I)
Of the three possibilities listed above it seems least likely that the Consuls of 435 continued in office this year. The second pair of Consuls are repeated in the other tradition which reported Military Tribunes with consular power. (Broughton MRR I)
Livy (4.23.1-3) based on Licinius Macer (fr. 14 Peter), who cited the libri lintei; Cassiod.; Degrassi 95, 372f. See below, Mil. Tr. c. p. (Broughton MRR I)