Isaac N. Arnold | |
|---|---|
 Arnold in 1884 | |
| Member of the U.S. House of Representatives from Illinois's 1st district | |
| In office March 4, 1863 – March 3, 1865 | |
| Preceded by | Elihu B. Washburne |
| Succeeded by | John Wentworth |
| Member of the U.S. House of Representatives from Illinois's 2nd district | |
| In office March 4, 1861 – March 3, 1863 | |
| Preceded by | John F. Farnsworth |
| Succeeded by | John F. Farnsworth |
| Member of the Illinois House of Representatives | |
| Personal details | |
| Born | November 30, 1815 Hartwick, New York, US |
| Died | April 24, 1884 (aged 68) Chicago, Illinois, US |
| Resting place | Graceland Cemetery |
| Political party | Republican |
Isaac Newton Arnold (November 30, 1815 – April 24, 1884) was an American attorney, politician, and biographer who made his career in Chicago. He served two terms in the United States House of Representatives (1860–1864) and in 1864 introduced the first resolution in Congress proposing a constitutional amendment to abolish slavery in the United States. After returning to Chicago in 1866, he practiced law and wrote biographies of Abraham Lincoln and Benedict Arnold.