County Quick Reference | |
County Seat: Cahokia | County Name: Named for Arthur St. Clair, first Governor of the |
Boundary Changes (click on the name of a change to see more information) | ||||||||||||
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See Also: St. Clair County, Territory of Indiana (1800-1809) St. Clair County, Territory of Illinois (1809-1818) | ||||||||||||
Background (general information on the county to put it in the context of history) |
St. Clair County was formed on 27 April 1790 by proclamation of the Governor of the Territory Northwest of the River Ohio [click here for more information]. By 1800, the county would go through one change to its boundaries before being incorporated into the Territory of Indiana.
The following map shows the original size of the county at its founding (in blue with a red border) and the final borders of the county after the boundary changes (in red with yellow border) superimposed on a modern map
.St. Clair County in 1790 and 1795 |
Bibliography (click on the title of the following works to learn more about life in the area;for those items not available online, check with your local library for availability) |
Referenced Items (content on HistoryKat that references this area) |