1830 Census
Furgison            Benjamin                 IN    Decatur
Furgison            Samuel                   IN    Decatur
1900 Census
Ferguson        Ed               32  Male    In      IN      Decatur 3-Wd Greensburg
Fergason        Samuel           40  Male    In      IN      Decatur 3-Wd Greensburg
Fergeson        Nicholas         40  Male    In      IN      Decatur Fugit Twp
1910 Census
Ferguson        Eugene           15  Male    In      IN      Decatur 1-Wd Greensburg
Ferguson        Nellie           19  Female  In      IN      Decatur 1-Wd Greensburg
Furgeson        Edward           40  Male    In      IN      Decatur 3-Wd Greensburg
1920 Census
Ferguson        Charles W        23  Male    In      IN      Decatur Jackson Twp
Ferguson        Roy E            28  Male    In      IN      Decatur Jackson Twp

The 1830 Census was copied from two sources; Accelerated Indexing Systems International, Inc and the INDIANA Historical Society.  Many spellings of the FERGUSON surname and different numbers, one may be the page number of  the census and one may be the household number.  As this is an index, the original census should be consulted.

IN 1830-Decatur Co
FURGISON            BENJAMIN                    DECA              382
FERGUSON            BENJAMIN                    DECA              762
FURGISON            SAMUEL                      DECA              394
FERGUSON            SAMUEL                      DECA              786
FURGISON            WILLIAM                     DECA              379
FERGUSON            WILLIAM                     DECA              756



1840 Census
Fargason            S                        IN    Decatur; Clinton and Fugit and Salt Creek
Fargason            Wm                       IN    Decatur; Clinton and Fugit and Salt Creek
Forgason            Benjm                    IN    Decatur; Washington, Marion,Sandcreek,Clay,Adams
Fergason            George                   IN    Decatur; Washington, Marion,Sandcreek,Clay,Adams
Furgason            Jeramiah                 IN    Decatur; Washington, Marion,Sandcreek,Clay,Adams
Forgason            John                     IN    Decatur; Washington, Marion,Sandcreek,Clay,Adams
Fergason            N                        IN    Decatur; Washington, Marion,Sandcreek,Clay,Adams
Forgason            Soloman                  IN    Decatur; Washington, Marion,Sandcreek,Clay,Adams
1850 Census
Furguson     Elizabeth       49  KY      IN      Decatur; Adams
Furguson     Elmira          20  IN      IN      Decatur; Adams
Furguson     Robert          0   IN      IN      Decatur; Adams
Furguson     Samuel          60  KY      IN      Decatur; Adams
Furguson     Samuel J        25  IN      IN      Decatur; Adams
Furguson     Benjamin        20  IN      IN      Decatur; Clay
Furguson     Benjamin        59  NC      IN      Decatur; Clay
Furguson     Elizabeth       18  IN      IN      Decatur; Clay
Furguson     Malinda         24  KY      IN      Decatur; Clay
Furguson     Martha          1   IN      IN      Decatur; Clay
Furguson     Mary C          0           IN      Decatur; Clay
Furguson     Nancy           57  VA      IN      Decatur; Clay
Furguson     Sanford         19  IN      IN      Decatur; Clay
Furguson     George M D      6   IN      IN      Decatur; Clinton
Furguson     James           16  IN      IN      Decatur; Clinton
Furguson     Jemima A        18  IN      IN      Decatur; Clinton
Furguson     John S          0   IN      IN      Decatur; Clinton
Furguson     Malinda         0   IN      IN      Decatur; Clinton
Furguson     Martha E        9   IN      IN      Decatur; Clinton
Furguson     Mary P          32  KY      IN      Decatur; Clinton
Furguson     Nancy           25  IN      IN      Decatur; Clinton
Furguson     Nancy J         4   IN      IN      Decatur; Clinton
Furguson     Sarah J         23  IN      IN      Decatur; Clinton
Furguson     Thomas          23  IN      IN      Decatur; Clinton
Furguson     Thomas          33  KY      IN      Decatur; Clinton
Furguson     William         20  IN      IN      Decatur; Clinton
Fergason     Milly J         18  KY      IN      Decatur; Marion
Ferguson     Sofia           20  IN      IN      Decatur; Sand Creek
1860 Census
Fergerson    John            2   Male    In     IN      Decatur Clay Twp
Forgerson    Martha          11  Female  In     IN      Decatur Jackson twp
Fergerson    R N             43  Male    Pa     IN      Decatur Jackson Twp
Fergerson    L D             15  Male    In     IN      Decatur Sand Crk Twp
1870 Census
Fergurson    Elizabeth       65  Female  Ky     IN      Decatur Adams Twp
Fergurson    Samuel          45  Male    In     IN      Decatur Adams Twp
Ferguson     William         26  Male    In     IN      Decatur Adams Twp
Ferguson     George A        26  Male    In     IN      Decatur Clay Twp
Ferguson     James Edward    26  Male    Oh     IN      Decatur Jackson Twp
Ferguson     Martha          21  Female  In     IN      Decatur Jackson Twp
Ferguson     Robert          55  Male    Pa     IN      Decatur Jackson Twp
Furgerson    Joseph P        35  Male    In     IN      Decatur Washington Twp
Furgusson    Porter          16  Male    Ky     IN      Decatur Washington Twp

IN - 1840 Census - Decatur Co
Information from the IN Historical Society
FERGASON            George         Deca                391
FERGASON            N              Deca                423
FURGASON            Jeremiah       Deca                427

IN 1850 CENSUS - DECATUR
SOURCE:ACCELERATED INDEXING SYSTEMS INTERNATIONAL, INC.
FERGUSON            SOFIA          DECA         148
FURGUSON            BENJAMIN       DECA          36
FURGUSON            BENJAMIN       DECA          36
FURGUSON            JAMES          DECA           8
FURGUSON            SAMUEL         DECA         111
FURGUSON            SANFORD        DECA          36
FURGUSON            THOMAS         DECA           8
FURGUSON            THOMAS         DECA           8