Sergius
Person
Gallic War 8.50 supplies the first indexed source portrait: “… Though Caesar heard on the road, before he reached Italy that he was created augur, yet he thought himself in honor bound to visit the free towns and colonies, to return them thanks for rendering such service to Antonius by their presence in such great numbers [at the election], and at the same time to recommend to them himself, and his honor in his suit …”
Named form in selected editions; identity established only to the extent of the cited context.
Gallic War 8.50
Hirtius
… Though Caesar heard on the road, before he reached Italy that he was created augur, yet he thought himself in honor bound to visit the free towns and colonies, to return them thanks for rendering such service to Antonius by their presence in such great numbers [at the election], and at the same time to recommend to them himself, and his honor in his suit for the consulate the ensuing year [48 B.C.]. For his adversaries arrogantly boasted that Lucius Lentulus and Caius Marcellus had been appointed consuls, who would strip Caesar of all honor and dignity: and that the consulate had been injuriously taken from Sergius Galba, though he had been much superior in votes and interest, because he was united to Caesar, both by friendship, and by serving as lieutenant under him.