1840 Census
Ferguson            Samuel                IA Terr. Dubuque; no twp listed
1860 Census
Furguson     Catharine       21  Female  Irel   IA      Dubuque Cascade Twp
Ferguson     Robert          38  Male    Scot   IA      Dubuque Dodge Twp
Fargusen     A T             30  Male    Scot   IA      Dubuque Dubuque
Furgeson     James           44  Male    Oh     IA      Dubuque Dubuque
1870 Census
Ferguson     Kate            28  Female  Irel   IA      Dubuque 1-Wd Dubuque
Ferguson     Archie          41  Male    Scot   IA      Dubuque 4-Wd Dubuque
Ferguson     Elizabeth       70  Female  Cana   IA      Dubuque 4-Wd Dubuque
Ferguson     George          28  Male    Cana   IA      Dubuque 4-Wd Dubuque
Ferguson     Isaac           72  Male    Cana   IA      Dubuque 4-Wd Dubuque
1900 Census
Ferguson        Grant            24  Male    Ny      IA      Dubuque 2-Wd Dubuque
Fergusson       James            33  Male    Ia      IA      Dubuque 2-Wd Dubuque
Ferguson        Mark H           28  Male    Scot    IA      Dubuque 2-Wd Dubuque
Ferguson        Archibald        73  Male    Ia      IA      Dubuque 3-Wd Dubuque
Fergusen        Archie           43  Male    Ia      IA      Dubuque 3-Wd Dubuque
Fergerson       George           38  Male    Ia      IA      Dubuque 4-Wd Dubuque
Ferguson        Rebecca          23  Female  Ia      IA      Dubuque 4-Wd Dubuque
Ferguson        E J              46  Male    Ia      IA      Dubuque 5-Wd Dubuque
Ferguson        Cargill          20  Male    Irel    IA      Dubuque Taylor Twp
1910 Census
Ferguson        Mamie            23  Female  Ne      IA      Dubuque 2-Wd Dubuque
Ferguson        Archibald E      50  Male    Ia      IA      Dubuque 3-Wd Dubuque
Fergerson       George G         50  Male    Ia      IA      Dubuque 4-Wd Dubuque
Fergerson       Edgar J          54  Male    Ia      IA      Dubuque 5-Wd Dubuque
Ferguson        James C          43  Male    Cana    IA      Dubuque 5-Wd Dubuque
Ferguson        Walter           21  Male    Ne      IA      Dubuque 5-Wd Dubuque
1920 Census
Ferguson        Archibald E      57  Male    Ia      IA      Dubuque 2-Wd; Dubuque; Julien
Ferguson        Jesse            45  Male    Oh      IA      Dubuque 2-Wd; Dubuque; Julien
Ferguson        Joseph A         30  Male    Ms      IA      Dubuque 2-Wd; Dubuque; Julien
Ferguson        Mattie L         39  Female  Ia      IA      Dubuque 2-Wd; Dubuque; Julien
Ferguson        Ida              54  Female  Ny      IA      Dubuque 4-Wd; Dubuque; Julien
Farguson        William W        31  Male    Ne      IA      Dubuque 5-Wd; Dubuque; Dubuque & Julie
Ferguson        Edgar            64  Male    Ia      IA      Dubuque 5-Wd; Dubuque; Dubuque & Julie
Ferguson        Bernard          4   Male    Ia      IA      Dubuque Dyersville; New Wine