Also see Thomas Brown In The Hornet's Nest.
The Hornet's Nest, A novel of the Revolutionary War by [President] Jimmy Carter, is concerned with the war "as it was fought in Georgia and the Carolinas...".
Two of the characters, husband and wife Kindred and Mavis Morris were associates of Dr. John Bartram of Philadelphia whose son, William, was going to collect flora and fauna, too.
Bartram: Then the surveyor team is supposed to come here, and I shall join this British and Indian group, who will be establishing the boundary lines of the territory just ceded by the Indians in Augusta. Then we plan to return to Savannah, continue my examination of the coastal areas of Carolina and Georgia, and later go farther into the interior of northern Florida and southern Georgia.