HAWK HAMILTON HARDIN CRAWFORD CARROLL BOONE GREENE STORY ALLAMAKEE FAYETTE CLAYTON BUCHANAN DELAWARE BREMER BUTLER BENTON LINN SHELBY MILLS CLINTON AUDUBON GUTHRIE DALLAS POLK IOWA POWESHIEK JASPER JOHNSON SCOTT CASS MADISON ADAIR MONTGOMERY ADAMS UNION / Iowa Legislative Service Bureau / U.S. Congress / /
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BUENA VISTA POCAHONTAS HUMBOLDT / WASHINGTON JEFFERSON / WARREN CLARKE LUCAS MARION / MONROE MUSCATINE KEOKUK WAPELLO WASHINGTON / BRIEN CLAY PALO ALTO / CLARKE LUCAS MARION MAHASKA MONROE MUSCATINE KEOKUK / /