US Congressman, Lawyer. He was a United States Representative from the State of Iowa. He was born one of seven children as William Frederick Kopp to John Martin Kopp (1836-1915), and his wife Mary Wagner Kopp (1838-1913), in Dodgeville, Iowa, on June 20, 1869. He was educated locally and attended the local common public schools before attending and graduating from the prestigious Iowa Wesleyan College in Mount Pleasant, Iowa, in 1892, and attending and graduating from the prestigious law department of the University of Iowa in Iowa City, Iowa, in 1894. Following his education, he was admitted to the bar in 1894 and commenced his practice of law in Mount Pleasant, Iowa, shortly thereafter. He then served as the Prosecuting Attorney of Henry County, Iowa, from 1895 to 1899. He also served as the Postmaster of Mount Pleasant, Iowa, from 1906 to 1914, and as a Member of the Iowa State House of Representatives from 1915 to 1917. He was also a longtime Member of the Board of Trustees of the Iowa Wesleyan College in Mount Pleasant, Iowa, from 1908 to 1938. He then decided to run for a seat in the United States Congress and was elected to succeed the outgoing United States Representative Charles Augustus Kennedy (1869-1951), on March 4, 1921. A Member of the Republican Party, he then served Iowa's 1st District (the Sixty-Seventh Congress, the Sixty-Eighth Congress, the Sixty-Ninth Congress, the Seventieth Congress, the Seventieth Congress, and the Seventy-Second Congress), in the United States House of Representatives from March 4, 1921, to March 3, 1933. While serving in the United States Congress, he also served as Chairman of the Committee on Expenditures in the Department of the Navy represnting the Sixty-Eighth Congress, Chairman of the Committee on Labor representing the Sixty-Ninth Congress, Seventieth Congress, and Seventy-First Congress, in 1930, and Chairman of the Committee on Pensions representing the Seventy-First Congress from 1925 to 1930. He was unfortunately unlike many other Republican candidates defeated as an unsuccessful Candidate for reelection in the Franklin Delano Roosevelt landslide in 1932. In total, he was elected in 1920, reelected in 1922, reelected in 1924, reelected in 1926, reelected in 1928, reelected in 1930, and lost reelection in 1932. Following his term in the United States Congress, he was succeeded in office by the incoming United States Representative and Attorney Edward Clayton Eicher (1878-1944), on March 4, 1933. After leaving the United States Congress, he resumed his practice of law in Mount Pleasant, Iowa, until his death on August 24, 1938, at the age of 69. He passed away from complications following a stroke in Mount Pleasant, Iowa, on August 24, 1938, at the age of 69. Following his death, his funeral services were held in his honor, and he was buried in Forest Home Cemetery in Mount Pleasant, Iowa. He was married to Clara Regina Bird Kopp (1870-1953), in Mount Pleasant, Iowa, on December 4, 1894, and the couple had four children together, Clarence in 1908, Alberta in 1912, Margaret in 1915, and Mary in 1922. His wife Clara passed away in Mount Pleasant, Iowa, on May 29, 1953, at the age of 82, and she is also buried in Mount Pleasant Cemetery in Mount Pleasant, Iowa.