South Carolina generation
The revised genealogy places John Poston III in the early South Carolina generation that established the family in Marion District. He represents the senior surname line followed forward through John “Jack” Poston and later descendants.
Revolutionary War reference
The genealogy cites South Carolina Revolutionary War claim records identifying a John Poston as a private in militia regiments associated with Colonels Hugh Giles and John Ervin, figures connected with Francis Marion’s brigade.
Family structure
The published work describes five sons and three daughters in his household and identifies John “Jack” Poston as one of the sons who continued the senior surname line.
Published research
Documentary evidence and archive links
No dedicated documentary record for this entity is currently linked from The Poston Family Archive. The source basis here is the published book material listed below.