John Henry Marsalis was a U.S. 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 Colorado

Colorado

Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

.

Born in McComb, Pike County, Mississippi

Pike County, Mississippi

-Demographics:As of the census of 2000, there were 38,940 people, 14,792 households, and 10,502 families residing in the county. The population density was 95 people per square mile . There were 16,720 housing units at an average density of 41 per square mile...

, Marsalis attended the public schools of McComb, Mississippi.
He moved with his parents to Colorado Springs, Colorado

Colorado Springs, Colorado

Colorado Springs is a Home Rule Municipality that is the county seat and most populous city of El Paso County, Colorado, United States. Colorado Springs is located in South-Central Colorado, in the southern portion of the state. It is situated on Fountain Creek and is located south of the Colorado...

, in 1922.
Student at the University of Mississippi

University of Mississippi

The University of Mississippi, also known as Ole Miss, is a public, coeducational research university located in Oxford, Mississippi. Founded in 1844, the school is composed of the main campus in Oxford, four branch campuses located in Booneville, Grenada, Tupelo, and Southaven as well as the...

 in 1925 and 1926.
He graduated from the University of Colorado Law School in 1934.
He 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...

 March 14, 1935, and commenced the practice of law in Pueblo, Colorado

Pueblo, Colorado

Pueblo is a Home Rule Municipality that is the county seat and the most populous city of Pueblo County, Colorado, United States. The population was 106,595 in 2010 census, making it the 246th most populous city in the United States....

.
Investigator in district attorney's office in Pueblo in 1935 and 1936.
He entered the United States Army

United States Army

The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

 May 11, 1942, assigned to the Weather Squadron, United States Air Force

United States Air Force

The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

, and was discharged on June 16, 1945.

Marsalis was elected district attorney, tenth judicial district of Colorado, in 1944 and took oath of office while on furlough January 9, 1945.
Assumed duties upon release from Army and served until December 1948.

Marsalis 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 Eighty-first

81st United States Congress

The Eighty-first United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives...

 Congress (January 3, 1949-January 3, 1951).
He was an unsuccessful candidate for reelection in 1950 to the Eighty-second

82nd United States Congress

The Eighty-second United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, DC from January 3, 1951 to January 3, 1953, during the last two years...

 Congress and for election in 1952 to the Eighty-third

83rd United States Congress

The Eighty-third United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, DC from January 3, 1953 to January 3, 1955, during the first two years...

 Congress.
He was appointed city attorney December 15, 1952, and served in that capacity until elected district judge, tenth judicial district of Colorado, November 1954.
He served in that office until his retirement February 28, 1962.
Resided in Pueblo, Colorado

Pueblo, Colorado

Pueblo is a Home Rule Municipality that is the county seat and the most populous city of Pueblo County, Colorado, United States. The population was 106,595 in 2010 census, making it the 246th most populous city in the United States....

, where he died June 26, 1971.
He was interred in Roselawn Cemetery.