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| | Encyclopedia: List of the most common U.S. county name etymologies |
 | | Clay County, Illinois: Clay is named for Henry Clay, the Kentucky statesman, speaker of the United States House of Representatives, ninth secretary of state of the United States, and thrice-time presidential candidate. |
 | | Clay County, Alabama : Clay is named for Henry Clay, the Kentucky statesman, speaker of the United States House of Representatives, ninth secretary of state of the United States, and thrice-time presidential candidate. |
 | | Madison County, Montana : Madison is named for the Madison River, named in turn for James Madison, the fourth president of the United States. |
| www.nationmaster.com /encyclopedia/List-of-the-most-common-U.S.-county-name-etymologies (1355 words) |
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