Janice Gartman Lee of the Lexington County, SC Genealogical Society has reconstructed the “Cunliffe “ passenger list from Charleston Council petitions for headright land. [The Cunliffe Passender List, Lexington Genealogical Exchange, vol. 4:4 (1985), pp 152-155.]
There is an entry of interest: “Bernard Hertoggs – wife & 4 ch, Tobias 18, George 16, Barbara & Elizabeth 10 yrs,”
I have a copy of the passenger list and will send you a copy if you give m your snail mail address.