1860 Census
Fergusson    A P             31  Male    Ny     IL      Iroquois Middleport
Fergusson    Elisha          19  Male    Oh     IL      Iroquois Onarga
1870 Census
Ferguson     Lloyd           22  Male    Il     IL      Iroquois 2-Wd Watseka
Ferguson     Brice           41  Male    Va     IL      Iroquois 4-Wd Watseka
Ferguson     Elsha           31  Male    Oh     IL      Iroquois Grenard Twp
1900 Census
Fergerson       Isoc             26  Male    In      IL      Iroquois Chebanse Twp
Furgerson       Prof J J         40  Male    Il      IL      Iroquois Chebanse Twp
1920 Census
Ferguson        Theresa          45  Female  Ky      IL      Iroquois Loda
Ferguson        William          65  Male    Swed    IL      Iroquois Loda