Don't know if this will help, but here goes. There are Castleberrys in Tishomingo County, Mississippi. . I know they were related somewhere back to Robert E. Lee. I married William Hayden Castleberry and had a son & we named him Robert Lee Castleberry after the old relative... Robert E. Lee. There are Castleberrys buried in Tishomingpo County....some in the Rutledge-Salem cemetary and some in another cemetary closer to Iuka, Mississippi. {My father in law was Lucian Castleberry and mother in law was Ila Faye Edmondson Castleberry. Lucian's dad is buried in Tishomingo County in one of these cemetaries I listed.
My husband was William Hayden Castleberry and he has a sister Virginia Castleberry Jones who still lives in Tishomingo County. Hope this helps someone.