1900 Census
Ferguson        Robert           79  Male    Scot    CA      Ventura Ojai Twp
Ferguson        W L              34  Male    Tn      CA      Ventura Ojai Twp
1910 Census
Furgerson       Duncan           30  Male    Cana    CA      Ventura Simi Valley Twp
Fergerson       William L        43  Male    Ky      CA      Ventura Ventura Twp
1920 Census
Ferguson        W G              30  Male    Ca      CA      Ventura Hueneme
Ferguson        Boyd             32  Male    Mi      CA      Ventura Pleasant Valley; Camarillo
Fergerson       George           69  Male    Ma      CA      Ventura Ventura
Fargerson       Clarence         21  Male    Il      CA      Ventura Ventura & Canada
Fargerson       Clarence         21  Male    Il      CA      Ventura Ventura & Canada