He may possibly be identified with the P. Sextius (RE no. 9), Praetorelect who was convicted of bribery toward 90 B.C. (Cic. Brut. 180). (Broughton MRR I)
Served under the Consul Bestia in Numidia (Sall. Iug. 29.4; cf. Cic. Brut. 180). (Broughton MRR I)
Quaestor of the consul L. Calpurnius Bestia in 111 (Sall. lug. 29.4-6; MRR 1.541, 543, note 4). He should more probably be identified with C. Sextius C. f. Calvinus (21), Pr. ca. 92 (see ILLRP 291; MRR 2.18) than with P. Sextius (9), who was convicted toward 90 of ambitus while pr. desig. (Cic. Brut. 180). See Sumner, Orators 76-77.[198x]
(Broughton MRR III)