1860 Census
Ferguson     M M             32  Male    Nc     SC      Marion Marion P O
1870 Census
Ferguson     Murdock M       43  Male    Sc     SC      Marion Marion Twp

Marion Co, SC 1860 Census                       
FERGUSON        M. M.*  Marion  13

SOUTH CAROLINA CENSUS, Marion County--1870 Census                       
FERGUSON, Murdock M     43      M       W       SC      Marion Twp      1503    181