There are 7 unique codex entries in the Persons of Note section on Tython. 1 is faction specific and 6 are class specific.
Jedi Master Tol Braga (Knight) is obtained from interacting with the Jedi Council Chambers during "Guided by the Force" mission.
Codex type: Persons of Note | Faction: Republic | Class: Jedi Knight
Associated Achievement: None
Orgus Din (Knight) is obtained from speaking with Unaw Aharo during "Attack of the Flesh Raiders" mission.
Codex type: Persons of Note | Faction: Republic | Class: Jedi Knight
Associated Achievement: None
Qyzen Fess (Consular) is obtained from speaking with Qyzen Fess during "Rajivari's Legacy" mission.
Codex type: Persons of Note | Faction: Republic | Class: Jedi Consular
Associated Achievement: None
Satele Shan is obtained from speaking with the Personal Holocom during "Attack of the Flesh Raiders" mission or interacting with a Clickable Plaque.
Codex type: Persons of Note| Faction: Republic | Class: All
Associated Achievement: None
Syo Bakarn (Consular) is obtained from speaking with Master Syo Bakarn during "Trials in Kaleth" mission.
Codex type: Persons of Note | Faction: Republic | Class: Jedi Consular
Associated Achievement: None
T7-01 (Knight) is obtained from speaking with T7-O1 during "Dark Temptations" mission.
Codex type: Persons of Note | Faction: Republic | Class: Jedi Knight
Associated Achievement: None
Yuon Par (Consular) is obtained from speaking with Master Yuon Par during "The Path of a Jedi" mission. There is no banner for unlocking this codex entry.
Codex type: Persons of Note | Faction: Republic | Class: Jedi Consular
Associated Achievement: None