Jonas Sutton

From PotBS Wiki

Jonas Sutton
Faction:	Pirate
Port:	initially Morgan's Bluff, later various locations
Port Location:	various
Associated Missions:	Missions Started: The Teacher Field Study Road Scholar Scholarly Pursuit Study Period Captive Audience Tracing the Past Others: Get a Clue

A scholar that might be able to help you with deciphering that map you found.