https://familysearch.org/ark:/61903/1:1:N9N9-282
Robert Johnson
mentioned in the record of Simon Johnson
Other information in the record of Simon Johnson
from South Carolina Deaths
Just a possibility:
1850 census (wife's maiden name is Clopton)
Source Citation
Year: 1850; Census Place: Laurens, South Carolina; Roll: M432_855; Page: 227A; Image: 54