1860 Census
Fargurson    David           41  Male    Scot   IL      Tazewell Washington Twp
Fargurson    David           41  Male    Scot   IL      Tazewell Washington Twp
Furgerson    Isaac           66  Male    Pa     IL      Tazewell Washington Twp
Furguson     William         29  Male    Scot   IL      Tazewell Washington Twp
1870 Census
Furgeson     George          19  Male    Il     IL      Tazewell Delavan Twp
Fergusen     William         45  Male    Scot   IL      Tazewell Fondulac Twp
Ferguson     Ida             2   Female  Il     IL      Tazewell Washington Twp
1900 Census
Ferguson        ??               40  Male    Il      IL      Tazewell 3-Wd Delavan
Forgerson       Charlie          30  Male    Il      IL      Tazewell Boynton Twp
Fogerson        Leonard          26  Male    Il      IL      Tazewell Boynton Twp
Furguson        L N              39  Male    Il      IL      Tazewell Mackinaw Twp
Ferguson        W D              41  Male    Il      IL      Tazewell Mackinaw Twp
Ferguson        James            35  Male    Tn      IL      Tazewell Morton Twp
1910 Census
Fergerson       Jula             34  Female  Il      IL      Tazewell 1-Wd Pekin
Ferguson        Caroline         59  Female  Cana    IL      Tazewell Tremont Twp
1920 Census
Ferguson        Vivian E         18  Female  Il      IL      Tazewell 2-Wd Pekin
Ferguson        William D        60  Male    Il      IL      Tazewell Deer Crk