1850 Census
Ferguson        John            3   ??      VA      King George; no twp listed
Ferguson        John            25  ??      VA      King George; no twp listed
Ferguson        Mary            25  ??      VA      King George; no twp listed
1910 Census
Farguson        Mark             56  Male    Va      VA      King George Potomac

VIRGINIA -- 1850 Census -- King George
FERGUSON          John            k go         231

KING GEORGE CO., VA 1870
FERGUSON, Adnrew        CHOTANK TWP                #  035
FERGUSON, Benjamin      CHOTANK TWP                #  034
FERGUSON, Mahala        CHOTANK TWP                #  035