1860 Census
Furgason     Thomas          34  Male    Ny     CA      Contra Costa Lafayette & Alamo
1870 Census
Ferguson     Andrew          21  Male    Scot   CA      Contra Costa Martinez P O
Ferguson     David           62  Male    Scot   CA      Contra Costa Martinez P O
1900 Census
Ferguson        David            76  Male    Scot    CA      Contra Costa Clayton Pct
Ferguson        Henry P          61  Male    Irel    CA      Contra Costa Crockett 2-Pct
1910 Census
Ferguson        David A          39  Male    Ny      CA      Contra Costa 10-Twp
Ferguson        Carl M           30  Male    Ca      CA      Contra Costa 15-Twp
Ferguson        Charlese         39  Male    Ca      CA      Contra Costa 15-Twp
Ferguson        Charlese         39  Male    Ca      CA      Contra Costa 15-Twp
Ferguson        E M              41  Male    Ca      CA      Contra Costa 15-Twp
Ferguson        Frank            30  Male    Ca      CA      Contra Costa 15-Twp
Ferguson        Frank            30  Male    Ca      CA      Contra Costa 15-Twp
Fergusson       Anita            14  Female  Mi      CA      Contra Costa 15-Twp
Furguson        David            53  Male    Il      CA      Contra Costa 1-Twp
Ferguson        Frank            33  Male    Oh      CA      Contra Costa 2-Twp
1920 Census
Ferguson        Joseph           40  Male    Engl    CA      Contra Costa 14-Twp
Furguson        Neil             26  Male    Ca      CA      Contra Costa 14-Twp
Ferguson        Thomas           47  Male    Mo      CA      Contra Costa Alhambra & Franklin; 1-Twp
Ferguson        Stewart          33  Male    Irel    CA      Contra Costa Concord
Furgeson        Edward R         56  Male    Ca      CA      Contra Costa Lafayette
Ferguson        Joseph H         34  Male    Ia      CA      Contra Costa Martinez
Ferguson        William          24  Male    Va      CA      Contra Costa Martinez
Ferguson        Elijah           48  Male    Ca      CA      Contra Costa Oleum; 11-Twp
Ferguson        James H          42  Male    Ca      CA      Contra Costa Richmond
Ferguson        George           54  Male    Me      CA      Contra Costa Rodeo; 11-Twp

CALIFORNIA -- 1860 Census -- Contra
FURGASON         Thomas    Contra            574