James F. Wilson

James Falconer Wilson
United States Senator from Iowa
In office March 4, 1883 – March 3, 1895
Preceded by	James W. McDill
Succeeded by	John H. Gear
Member of the U.S. House of Representatives from Iowa's 1st district
In office October 8, 1861 – March 3, 1869
Preceded by	Samuel Ryan Curtis
Succeeded by	George W. McCrary
Member of the Iowa House of Representatives
In office 1857 1859
Member of the Iowa Senate
In office 1859–1861
Personal details
Born	(1828-10-19)October 19, 1828 Newark, Ohio, U.S.
Died	April 22, 1895(1895-04-22) (aged 66) Fairfield, Iowa, U.S.
Political party	Whig; Free Soil; Republican
Spouse	Mary A. K. Jewett Wilson
Profession	Politician, attorney
Signature

James Falconer "Jefferson Jim" Wilson (October 19, 1828 – April 22, 1895) was an American lawyer and politician. He served as a Republican U.S. Congressman from Iowa's 1st congressional district during the American Civil War, and later as a two-term U.S. Senator from Iowa. He was a pioneer in the advancement of federal protection for civil rights.

While in the United States House of Representatives, he had prominently opposed the 1867 effort to impeach President Andrew Johnson. However, he voted for the subsequent 1868 impeachment of Johnson, and served as a manager (prosecutor) in the Johnson's impeachment trial.

In the last half of the nineteenth century, two unrelated Iowans named James Wilson achieved high office, necessitating an early form of disambiguation. Representative and Senator James F. Wilson (of Jefferson County, Iowa) became known as "Jefferson Jim" Wilson,^[1] while Representative and Secretary of Agriculture James Wilson (of Tama County, Iowa) became known as "Tama Jim" Wilson.^[1]