About Isaac Newton Arnold
Lived 1815 – 1884 (aged 68). Isaac Newton Arnold was an American politician, lawyer and writer.
Isaac Newton Arnold (November 30, 1815 – April 24, 1884) was an American politician 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.
Biography
Early life, education, and career Born on November 30, 1815 in Hartwick, New York, He attended common schools, followed by the Hartwick Seminary in 1831–1832. There he joined the Philophronean Society, who debated the issues of the day, including the abolition of slavery.
From 1832 to 1835, Arnold taught school in Otsego County. He studied law with Richard Cooper, and later with Judge E. B. Morehouse of Cooperstown. He was admitted to the bar in 1835 (at the age of 20) and became a partner of Morehouse. A strong supporter of President Lincoln during his tenure in Congress, Arnold pushed emancipation in the territories and nation. He defended Lincoln against critics, including within his party. In 1866, Arnold left Washington altogether and returned to his law practice in Chicago.
Literary career Arnold was rapidly working on a book about Lincoln. He published The History of Abraham Lincoln and the Overthrow of Slavery in 1867. This was considered a general history that suffered from not having sufficient research.
He did years of research on an earlier historical figure, writing a biography entitled The Life of Benedict Arnold: His Patriotism and His Treason (1880).
Dismayed by contemporary accounts of Lincoln by William H. Herndon and Ward Hill Lamon, Arnold wrote a new biography, The Life of Lincoln (1884), to concentrate on the years of his presidency and refute some of the personal controversial accounts. It was well received at the time, reviewed by the press in the US and Great Britain and, in the late 1940s, it was described as "one of the best of the early biographies." It was reprinted in 1994.
Death
Arnold died April 24, 1884, and was buried at Graceland Cemetery in Chicago.
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Important facts
People in Isaac Newton Arnold's life
Named in this biography and alive at the same time
Contemporaries
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Frequently asked questions
Who was Isaac Newton Arnold?
American politician (1815–1884)
When was Isaac Newton Arnold born?
Isaac Newton Arnold was born on 30 November 1815 in Hartwick.
When did Isaac Newton Arnold die?
Isaac Newton Arnold died on 24 April 1884 in Chicago.
What was Isaac Newton Arnold's occupation?
Isaac Newton Arnold was a politician, lawyer and writer.
What nationality was Isaac Newton Arnold?
Isaac Newton Arnold was American.
Sources & further reading
· Wikipedia: Isaac Newton Arnold
Cite this page
APA: Biography.guide. (2026). Isaac Newton Arnold. https://biography.guide/isaac-newton-arnold/
MLA: "Isaac Newton Arnold." Biography.guide, https://biography.guide/isaac-newton-arnold/.
Chicago: "Isaac Newton Arnold." Biography.guide. https://biography.guide/isaac-newton-arnold/.
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