1900-1910 U.S. and South Carolina Census for McCaskill Chesterfield, SC

I am searching for my great-great grandfather's father with the last name McCaskill born in 1861. He may have been an  enslaved child in Chesterfield County,Jefferson/Angelus, South Carolina SEC 39. His son, my great grandfather Benjamin McCaskill is reported in the U.S. and South Carolina 1910 Census records G7HZ-RHK. Thank you for your help.