1850 Census
Ferguson     Austin          26  MO      MO      Jefferson; District 42
Ferguson     Daniel F        2   MO      MO      Jefferson; District 42
Ferguson     Eliza Ann       22  MO      MO      Jefferson; District 42
Ferguson     Elizabeth       6   MO      MO      Jefferson; District 42
Ferguson     Nancy Jane      4   MO      MO      Jefferson; District 42
1860 Census
Furgason     Estrom          30  Male    Mo     MO      Jefferson Big Rvr Twp
Furgason     William         20  Male    Mo     MO      Jefferson Big Rvr Twp
Furgeson     John            28  Male    Mo     MO      Jefferson Plattin Twp
1870 Census
Furgerson    Silas           35  Male    Il     MO      Jefferson Plattin Twp
Furgerson    E               61  Male    Ny     MO      Jefferson Valle Twp
Ferguson     William         29  Male    Mo     MO      Jefferson; Big Rvr Twp
1900 Census
Furgeson        Lee              36  Male    Il      MO      Jefferson 3-Wd deSoto
Ferguson        Jesse            21  Male    Mo      MO      Jefferson Big River Twp
Furgeson        William          ??  Male    ??      MO      Jefferson Big River Twp
Fergerson       Daniel B         53  Male    Mo      MO      Jefferson Valle Twp
Ferguson        Frederic D       52  Male    Mo      MO      Jefferson Valle Twp
1910 Census
Furgeson        Thomas           42  Male    Mo      MO      Jefferson Big Rvr Twp
Furgeson        William P        69  Male    Mo      MO      Jefferson Big Rvr Twp
Farguson        Alvie S          52  Male    Pa      MO      Jefferson Central Twp
Farguson        Alvie S          52  Male    PA      MO      Jefferson; Central Twp
1920 Census
Fergason        Harold           30  Male    Mo      MO      Jefferson Festus; Joachim
Ferguson        Allie Mrs        44  Female  MO      MO      Jefferson; 1-Wd; Crystal City; Joachim
Ferguson        Grace Mrs        27  Female  MO      MO      Jefferson; 1-Wd; Crystal City; Joachim
Ferguson        Roscoe           23  Male    MO      MO      Jefferson; 1-Wd; Crystal City; Joachim
Ferguson        Richard          15  Male    MO      MO      Jefferson; 1-Wd; De Soto; Valle
Ferguson        Allie            39  Female  MO      MO      Jefferson; 1-Wd; Festus; Joachim
Ferguson        Aloie S          63  Male    PA      MO      Jefferson; Central

1880 Jefferson Co., Mo., Cut from St. Genevieve, St. Lois, in 1818
Big River Twp.
William Ferguson  40 Mo.
Nancy    42 Tn.
Willie male   12 Mo.
Lulu     ?  Mo.
Clara     4 Mo.
Jesse     1 Mo.
 Think this should be 1860 and not 1880 as I have it shown.
Relationships and states of birth for parents not being shown is the
primary reason I think this.