1840 Census
Ferguson            Morgn                    IL    Rock Island; no twp listed
1850 Census
Furguson     John            60  Ire.    IL      Rock Island; District 37
Fargason     Eliza           36  NY      IL      Rock Island; Rock Island Lower Ward
Fargason     Elizabeth       16  PA      IL      Rock Island; Rock Island Lower Ward
Fargason     James           24  MA      IL      Rock Island; Rock Island Lower Ward
Fargason     John            10  IL      IL      Rock Island; Rock Island Lower Ward
Fargason     Katharine       18  PA      IL      Rock Island; Rock Island Lower Ward
Fargason     Mary            1   IL      IL      Rock Island; Rock Island Lower Ward
Fargason     Morgan          43  CT      IL      Rock Island; Rock Island Lower Ward
Fargason     William         6   IL      IL      Rock Island; Rock Island Lower Ward
1860 Census
Ferguson     Margaret        20  Female  Irel   IL      Rock Island 2-Wd Rock Island
Ferguson     O K             35  Male    Ny     IL      Rock Island 3-Wd Rock Island
Ferguson     James S         33  Male    Ma     IL      Rock Island Andalusia Twp
Ferguson     James           38  Male    Pa     IL      Rock Island Zuma Twp
1870 Census
Furgerson    Frank           19  Male    Il     IL      Rock Island 4-Wd Rock Island
Furgeson     James           43  Male    Ct     IL      Rock Island Blackhawk Twp
Ferguson     Kate            34  Female  Irel   IL      Rock Island Blackhawk Twp
Furgeson     William         37  Male    Ky     IL      Rock Island Bowling Twp
Fergurson    Orrin           45  Male    Ny     IL      Rock Island Moline Twp
Furgerson    William         25  Male    Ny     IL      Rock Island Moline Twp
1900 Census
Ferguson        Samuel J         35  Male    Il      IL      Rock Island 4-Wd Rock Island
Ferguson        William          53  Male    Pa      IL      Rock Island 5-Wd Rock Island
Ferguson        Albert           38  Male    Mi      IL      Rock Island Black Hawk Twp
Ferguson        George E         38  Male    Il      IL      Rock Island Cordova Twp
1910 Census
Fergison        John L           40  Male    Us      IL      Rock Island 1-Wd Moline
Ferguson        Carl             21  Male    Nc      IL      Rock Island 3-Wd Moline
Ferguson        Matt             52  Male    Ia      IL      Rock Island 3-Wd Rock Island
Ferguson        Harriet A        71  Female  Oh      IL      Rock Island 4-Wd Moline
Furgesen        Jacob S          45  Male    Md      IL      Rock Island 5-Wd Rock Island
Ferguson        George E         47  Male    Mi      IL      Rock Island Cordova Twp
Ferguson        Cecil            34  Male    Ia      IL      Rock Island Hampton Twp
Furgeson        Carl             35  Male    In      IL      Rock Island Hampton Twp
1920 Census
Ferguson        William R        30  Male    Ky      IL      Rock Island 4-Wd East Moline
Ferguson        Annie            50  Female  Ar      IL      Rock Island Rock Island
Ferguson        Halley           32  Male    Ia      IL      Rock Island Rock Island
Fergueson       Ida Mrs          34  Female  Il      IL      Rock Island South Rock Island
Ferguson        Samuel B         26  Male    Scot    IL      Rock Island South Rock Island
Ferguson        Thomas M         46  Male    Scot    IL      Rock Island South Rock Island