Benjamin Hawkins, a member of the Continental Congress, was appointed by George Washington to be the US Indian agent for all tribes south of the Ohio River. He lived among, and married into the Southeastern tribes. His brother married the daughter of controversial Creek leader William McIntosh, and was assassinated along with McIntosh by Creek factions opposed to their treaty making.
2 U.S. SIGNERS WHO ACCOUNT FOR 12 SIGNATURES ON 12 TREATIES