1870 Census
Ferguson     Mary            22  Female  Ar     LA      Plaquemines New Orleans P O
1910 Census
Ferguson        Angus            25  Male    Ms      LA      Plaquemines 4-Wd Police Jury

No Fergusons -- 1850, 1860

LOUISIANA -- 1880 Census -- Plaquemines
FERGERSON        Mary      Plaquemin       282
FERGUSON         Henry     Plaquemin       284
FERGUSON         William   Plaquemin       194