1850 Census
Ferguson     David           14  IN      IN      Sullivan; Hamilton
Furguson     David           68  Ire.    IN      Sullivan; Hamilton
Ferguson     James           12  IN      IN      Sullivan; Hamilton
Ferguson     Lucy            51  Ire.    IN      Sullivan; Hamilton
Ferguson     Rebecca         11  IN      IN      Sullivan; Hamilton
Ferguson     Rebecca         11  IN      IN      Sullivan; Hamilton
Ferguson     Sarah           15  IN      IN      Sullivan; Hamilton
1860 Census
Furguson     David           78  Male    Irel   IN      Sullivan Hamilton Twp
Furguson     David G         24  Male    In     IN      Sullivan Hamilton Twp
Furgenson    George          37  Male    Scot   IN      Sullivan Turman Twp
1870 Census
Furguson     Thomas J        43  Male    In     IN      Sullivan Hamilton Twp
1900 Census
Ferguson        Sam              31  Male    In      IN      Sullivan Cass Twp
Ferguson        Howard           35  Male    In      IN      Sullivan Haddon Twp
Ferguson        John             50  Male    In      IN      Sullivan Haddon Twp
Ferguson        Levi             38  Male    Ky      IN      Sullivan Hamilton Twp
Ferguson        George W         42  Male    In      IN      Sullivan Jackson Twp
1910 Census
Fergueson       Samuel           41  Male    Ky      IN      Sullivan Cass Twp
Ferguson        Harry            26  Male    In      IN      Sullivan Cass Twp
Ferguson        James            19  Male    Tn      IN      Sullivan Cass Twp
Furgison        Sarah            15  Female  In      IN      Sullivan Cass Twp
Ferguson        Oliver           31  Male    Il      IN      Sullivan Curry Twp
Ferguson        Clarence         14  Male    In      IN      Sullivan Farmersburg
Ferguson        Clarence         21  Male    Ne      IN      Sullivan Haddon Twp
Ferguson        Howard           38  Male    In      IN      Sullivan Haddon Twp
Ferguson        John             62  Male    In      IN      Sullivan Haddon Twp
Ferguson        John T           50  Male    In      IN      Sullivan Haddon Twp
Ferguson        Nathan H         29  Male    In      IN      Sullivan Haddon Twp
Ferguson        William T        34  Male    Il      IN      Sullivan Haddon Twp
Ferguson        Frank L          42  Male    In      IN      Sullivan Shelburn
Ferguson        George M         51  Male    Ky      IN      Sullivan Shelburn
1920 Census
Fergeson        Samuel           51  Male    Tn      IN      Sullivan 1-Wd; Dugger; Cass Twp
Fergeson        William          38  Male    In      IN      Sullivan 1-Wd; Dugger; Cass Twp
Ferguson        James            10  Male    In      IN      Sullivan 1-Wd; Dugger; Cass Twp
Ferguson        George N         61  Male    Ky      IN      Sullivan 1-Wd; Shelburn; Curry Twp
Ferguson        Clarence         23  Male    In      IN      Sullivan 3-Wd; Farmersburg; Curry Twp
Ferguson        Charles          50  Male    In      IN      Sullivan 3-Wd; Sullivan; Hamilton Twp
Ferguson        Harry            33  Male    In      IN      Sullivan 3-Wd; Sullivan; Hamilton Twp
Ferguson        William T        43  Male    Il      IN      Sullivan Carlisle; Haddon Twp
Fugeson         Arville          22  Male    In      IN      Sullivan Haddon Twp
Furgeson        Howard           55  Male    In      IN      Sullivan Haddon Twp

IN - 1840 Census - Sullivan Co
Information from the IN Historical Society
FERGUSON            Thos           Sull                125

IN 1850 CENSUS - SULLIVAN
SOURCE:ACCELERATED INDEXING SYSTEMS INTERNATIONAL, INC.
FURGERSON           DAVID          SULL         253
FURGESON            JAMES          SULL         254