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 County results Geary: 50–60% 60–70% 70–80% Clymer: 50–60% 60–70% 70–80% | |||||||||||||||||
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The1866 Pennsylvania gubernatorial election occurred on October 9, 1866. Incumbent governorAndrew Gregg Curtin, a Republican, was not running for re-election.
Republican candidateJohn W. Geary defeated Democratic candidateHiester Clymer to becomeGovernor of Pennsylvania.
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | John W. Geary | 307,274 | 51.44 | |
| Democratic | Hiester Clymer | 290,096 | 48.56 | |
| Total votes | 597,370 | 100.00 | ||
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