Just a thought, all of these accounts we have been reading seem to have a nidus of commonality but all seem to have some degree of agreement on the set up prior to engagement, sheltering from rain in a barn, running to rough timber, conversation amongst the guerrillas, etc... almost as if there was a southern survivor as well as the Union MSM guys ergo 150 plus witnesses. It's the little details and flourishes. I am also surprised the MSM did not take action against Long and Turner, Turner for sure for aiding and abetting. Darby, Turner, White, Hocker, Long families all had southern sympathies.
I think one got away... reported back to Anderson, or one of the landowners was closer to the action than related with prior knowledge of the guerrilla group being on hand. I suspect a Turner.