1860 Census
Ferguson     William         25  Male    Oh     KS      Leavenworth 3-Wd Leavenworth
Ferguson     E               45  Male    Ky     KS      Leavenworth Stranger Twp
1870 Census
Ferguson     J               24  Male    Pa     KS      Leavenworth 2-Wd Leavenworth
Fergason     Henry           24  Male    Oh     KS      Leavenworth 3-Wd Leavenworth
Ferguson     Samuel          29  Male    Nc     KS      Leavenworth Alexandria Twp
Furguson     Mason           38  Male    Ky     KS      Leavenworth Fairmount Twp
Ferguson     G H             23  Male    Pa     KS      Leavenworth Fort Leavenworth
Fergerson    J B             23  Male    Oh     KS      Leavenworth Fort Leavenworth
Furgerson    Elijah          55  Male    Ky     KS      Leavenworth High Prairie Twp
Furguson     Charles         24  Male    Mo     KS      Leavenworth Kickapoo Twp
Fergurson    Albert L        29  Male    Mi     KS      Leavenworth Tonganoxie
Fergurson    Nicholas        72  Male    Ny     KS      Leavenworth Tonganoxie
1900 Census
Ferguson        William A        28  Male    Mo      KS      Leavenworth 2-Wd Leavenworth
Fergerson       Charles          41  Male    Ny      KS      Leavenworth 5-Wd Leavenworth
Ferguson        John W           25  Male    Pa      KS      Leavenworth 5-Wd Leavenworth
Ferguson        Mary W           66  Female  Oh      KS      Leavenworth Delaware Twp
Ferguson        Alfred           35  Male    Ks      KS      Leavenworth High Prairie Twp
Ferguson        Clara            33  Female  Ks      KS      Leavenworth High Prairie Twp
Ferguson        Lourena          50  Female  Ky      KS      Leavenworth High Prairie Twp
Ferguson        David            66  Male    Va      KS      Leavenworth National Military Disabled Vol
Ferguson        Joseph L D       80  Male    Ky      KS      Leavenworth National Military Disabled Vol
Furgerson       August           20  Male    Mo      KS      Leavenworth Stranger Twp
1910 Census
Ferguson        Joseph           41  Male    Irel    KS      Leavenworth 2-Wd Leavenworth
Furgeson        Charles          51  Male    Ny      KS      Leavenworth 5-Wd Leavenworth
Fergason        Harvey           75  Male    In      KS      Leavenworth Delaware Twp
Ferguson        Benjamin H       68  Male    Mo      KS      Leavenworth Delaware Twp
Ferguson        John             34  Male    Pa      KS      Leavenworth Delaware Twp
Furguson        John H           22  Male    Nj      KS      Leavenworth Fort Leavenworth M
Ferguson        Afred A          45  Male    Ks      KS      Leavenworth High Prairie Twp
Ferguson        Granville        45  Male    Ks      KS      Leavenworth High Prairie Twp
1920 Census
Ferguson        Lou              60  Female  Ky      KS      Leavenworth 3-Wd; Leavenworth; Delaware Tw
Ferguson        Charles          26  Male    Ks      KS      Leavenworth 4-Wd; Leavenworth; Delaware Tw
Ferguson        William          47  Male    Mo      KS      Leavenworth 4-Wd; Leavenworth; Delaware Tw
Ferguson        Charles F        60  Male    Ny      KS      Leavenworth 5-Wd; Leavenworth; Delaware Tw
Ferguson        William          30  Male    Ks      KS      Leavenworth 6-Wd; Leavenworth; Delaware Tw
Ferguson        John             46  Male    Pa      KS      Leavenworth Delaware Twp
Furgerson       Richard C        27  Male    Ks      KS      Leavenworth Delware Kansas State Prison
Farguson        William          24  Male    La      KS      Leavenworth Fort Leavenworth
Ferguson        Allan H          36  Male    Il      KS      Leavenworth Fort Leavenworth
Ferguson        Arthur M         42  Male    Ks      KS      Leavenworth Fort Leavenworth
Ferguson        Oliver N         41  Male    Mo      KS      Leavenworth Fort Leavenworth
Ferguson        Alfred           54  Male    Ks      KS      Leavenworth High Prairie Twp
Furguson        Granville        50  Male    Ks      KS      Leavenworth High Prairie Twp
Ferguson        Willis H         ??  Male    ??      KS      Leavenworth National Military Home
Farguson        Lavina F         69  Male    Ky      KS      Leavenworth Tonganoxie Twp

KANSAS -- 1860 Census-- Leavenworth
FERGUSON         David   Leav          12
FERGUSON         E.      Leav         314