There is a lake in Alachua County, Florida, named for Daniel Newnan of Georgia. Called Pithlachocco on early maps, it was renamed for Newnan because he led a Georgia detachment that fought the Alachua Indians near there in September 1812. Although it has long since disappeared, there was also a town named Newnansville which was the Alachua County seat until 1854. The county seat of Coweta County in Georgia is also named for him. But neither in Florida nor Georgia is there much in print about this man.
Mahon, John K.
"Daniel Newnan: A Neglected Figure in Florida History,"
Florida Historical Quarterly: Vol. 74:
2, Article 5.
Available at: https://stars.library.ucf.edu/fhq/vol74/iss2/5