Robert Porter Caldwell | |
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 | |
| Member of the U.S. House of Representatives from Tennessee's 7th district | |
| In office March 4, 1871 – March 3, 1873 | |
| Preceded by | Isaac R. Hawkins |
| Succeeded by | John Atkins |
| Member of the Tennessee House of Representatives | |
| In office 1855-1856 | |
| Member of the Tennessee Senate | |
| In office 1847-1848 | |
| Personal details | |
| Born | December 16, 1821 Adair County, Kentucky, US |
| Died | March 12, 1885 (aged 63) Trenton, Tennessee, US |
| Political party | Democratic |
| Spouses |
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| Children | Thomas Wilkins Caldwell |
Robert Porter Caldwell (December 16, 1821 – March 12, 1885) was an American politician and a member of the United States House of Representatives for the 7th congressional district of Tennessee.