William Frederick Kopp was a six-term Republican

Republican Party (United States)

The Republican Party is one of the two major contemporary political parties in the United States, along with the Democratic Party. Founded by anti-slavery expansion activists in 1854, it is often called the GOP . The party's platform generally reflects American conservatism in the U.S...

 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 Iowa's 1st congressional district

Iowa's 1st congressional district

Iowa's 1st congressional district is a congressional district in the U.S. state of Iowa that covers the northeastern part of the state. The district includes Dubuque, Clinton, Davenport and Waterloo....

.

Born near Dodgeville, Iowa, Kopp attended the common schools. He was graduated from Iowa Wesleyan College

Iowa Wesleyan College

Iowa Wesleyan College is a private four-year liberal arts college of the United Methodist Church located Mt. Pleasant, Iowa.Iowa Wesleyan is recognized as a pioneer in higher education in America. Founded in 1842, it ranks as the oldest coeducational college located west of the Mississippi River...

 at Mount Pleasant

Mount Pleasant, Iowa

Mount Pleasant is a city in and the county seat of Henry County, Iowa, in the United States. The population was 8,668 in the 2010 census, a decline from 8,751 in the 2000 census. It was founded in 1835 by pioneer Presley Saunders.- History :...

 in 1892 and from the University of Iowa College of Law

University of Iowa College of Law

The University of Iowa College of Law is one of the eleven professional graduate schools at the University of Iowa, located in Iowa City, Iowa. Founded in 1865, it is the oldest law school in continuous operation west of the Mississippi River. The law school was ranked as the 27th best law school...

 at Iowa City

Iowa City, Iowa

Iowa City is a city in Johnson County, State of Iowa. As of the 2010 Census, the city had a total population of about 67,862, making it the sixth-largest city in the state. Iowa City is the county seat of Johnson County and home to the University of Iowa...

 in 1894. 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...

 in 1894 and commenced practice in Mount Pleasant. He served as prosecuting attorney of Henry County, Iowa

Henry County, Iowa

-2010 census:The 2010 census recorded a population of 20,145 in the county, with a population density of . There were 8,280 housing units, of which 7,666 were occupied.-2000 census:...

, from 1895 to 1899. He later served as Postmaster of Mount Pleasant from 1906 to 1914, and as a member of the board of trustees of Iowa Wesleyan College from 1908 to 1938.

Kopp was elected to the Iowa House of Representatives in 1914, and served a single two-year term that ended in early 1917.

In 1920, Kopp was elected as a Republican to the first of six consecutive terms in the U.S. House, representing Iowa's 1st congressional district in the
Sixty-seventh

67th United States Congress

The Sixty-seventh 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, 1921 to March 4, 1923, during the first two years...

 and to the five succeeding Congresses. He served as chairman of the Committee on Expenditures in the Department of the Navy (in the Sixty-eighth

68th United States Congress

The Sixty-eighth 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, 1923 to March 4, 1925, during the last months of...

 Congress), Committee on Labor (in the Sixty-ninth

69th United States Congress

The Sixty-ninth 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, 1925 to March 4, 1927, during the third and fourth...

 through Seventy-first

71st United States Congress

The Seventy-first 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, 1929 to March 4, 1931, during the first two years...

 Congresses), and the Committee on Pensions (in the Seventy-first Congress).

In 1932, Kopp, like many other Republican candidates for Congress, was defeated in the Roosevelt landslide. Kopp was defeated by Washington, Iowa

Washington, Iowa

Washington is a city in and the county seat of Washington County, Iowa, United States. It is part of the Iowa City, Iowa Metropolitan Statistical Area. The population was 7,047 at the 2000 census.-History:...

, attorney Edward C. Eicher

Edward C. Eicher

Edward C. Eicher was a three-term congressman, federal securities regulator, and federal district court judge during the presidency of Franklin D. Roosevelt. He was considered a consummate "New Deal" liberal....

. In all, Kopp served in the House from March 4, 1921 to March 3, 1933.

Kopp returned to practice law at Mount Pleasant, Iowa, until his death there on August 24, 1938. He was interred in Forest Home Cemetery.