Isaac Newton Morris was a United States Representative

United States House of Representatives

The United States House of Representatives is one of the two Houses of the United States Congress, the bicameral legislature which also includes the Senate.The composition and powers of the House are established in Article One of the Constitution...

 from Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

, son of Thomas Morris

Thomas Morris (Ohio politician)

Thomas Morris was a Democratic politician from Ohio. He served in the United States Senate.Born in Berks County, Pennsylvania, Morris enlisted as a Ranger to fight the Indians in 1793. He settled in western Ohio two years later. He began practicing law in Bethel, Ohio in 1804...

 and brother of Jonathan David Morris.

Born in Bethel, Ohio

Bethel, Ohio

Bethel is a village in Clermont County, Ohio, United States. The population was 2,637 at the 2000 census.Bethel was founded in 1798 by Obed Denham, in what was then the Northwest Territory....

, Morris attended Miami University

Miami University

Miami University is a coeducational public research university located in Oxford, Ohio, United States. Founded in 1809, it is the 10th oldest public university in the United States and the second oldest university in Ohio, founded four years after Ohio University. In its 2012 edition, U.S...

, Oxford, Ohio

Oxford, Ohio

Oxford is a city in northwestern Butler County, Ohio, United States, in the southwestern portion of the state. It lies in Oxford Township, originally called the College Township. The population was 21,943 at the 2000 census. This college town was founded as a home for Miami University. Oxford...

.
He studied law and was admitted to the bar

Admission to the bar in the United States

In the United States, admission to the bar is the granting of permission by a particular court system to a lawyer to practice law in that system. Each U.S. state and similar jurisdiction has its own court system and sets its own rules for bar admission , which can lead to different admission...

 in 1835 and commenced practice in Warsaw, Illinois

Warsaw, Illinois

Warsaw is a city in Hancock County, Illinois, United States. The population was 1,793 at the 2000 census. The city is notable for its historic downtown and the Warsaw Brewery, which operated for more than 100 years beginning in 1861...

, in 1836.
He moved to Quincy, Illinois

Quincy, Illinois

Quincy, known as Illinois' "Gem City," is a river city along the Mississippi River and the county seat of Adams County. As of the 2010 census the city held a population of 40,633. The city anchors its own micropolitan area and is the economic and regional hub of West-central Illinois, catering a...

 in 1838 and continued the practice of law.
He was appointed secretary of state of Illinois in 1840, but declined.
He served as president of the Illinois & Michigan Canal Co. in 1841.
He served as member of the State house of representatives 1846-1848.

Morris was elected as a Democrat

Democratic Party (United States)

The Democratic Party is one of two major contemporary political parties in the United States, along with the Republican Party. The party's socially liberal and progressive platform is largely considered center-left in the U.S. political spectrum. The party has the lengthiest record of continuous...

 to the Thirty-fifth

35th United States Congress

The 35th United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1857 to March 3, 1859, during the first two years of James...

 and Thirty-sixth

36th United States Congress

The Thirty-sixth United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1859 to March 4, 1861, during the third and fourth...

 Congresses (March 4, 1857 – March 3, 1861).
He was not a candidate for renomination in 1860.
He was appointed commissioner for the Union Pacific Railroad

Union Pacific Railroad

The Union Pacific Railroad , headquartered in Omaha, Nebraska, is the largest railroad network in the United States. James R. Young is president, CEO and Chairman....

 by President Ulysses S. Grant

Ulysses S. Grant

Ulysses S. Grant was the 18th President of the United States as well as military commander during the Civil War and post-war Reconstruction periods. Under Grant's command, the Union Army defeated the Confederate military and ended the Confederate States of America...

in 1869.
He died in Quincy, Illinois on October 29, 1879 and was interred in Woodland Cemetery.