John James Gardner | |
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| Member of the U.S. House of Representatives from New Jersey's 2nd district | |
| In office March 4, 1893 – March 3, 1913 | |
| Preceded by | James Buchanan |
| Succeeded by | J. Thompson Baker |
| Member of the New Jersey Senate from Atlantic County | |
| In office 1878–1893 | |
| Preceded by | Hosea F. Madden |
| Succeeded by | Samuel D. Hoffman |
| Mayor of Atlantic City, New Jersey | |
| In office 1868–1872 | |
| Preceded by | Lemuel G. Eldridge |
| Succeeded by | Charles Souder |
| In office 1874–1875 | |
| Preceded by | Charles Souder |
| Succeeded by | Willard Wright |
| Personal details | |
| Born | October 17, 1845 Atlantic County, New Jersey |
| Died | February 7, 1921 (aged 75) Indian Mills, New Jersey |
| Political party | Republican |
| Alma mater | University of Michigan |
| Profession | Politician |
| Signature | .png){kind=small} |
John James Gardner (October 17, 1845 – February 7, 1921) was an American Republican Party politician who represented New Jersey's 2nd congressional district in the United States House of Representatives for ten terms from 1893 to 1913, and was Mayor of Atlantic City, New Jersey.
At the time of his election to Congress, Gardner was the longest serving member in the history of the New Jersey Senate, having represented Atlantic County for five consecutive terms from 1878 to 1893.