(26 August, 1820 -- 5 October, 1899) Harlan was an American lawyer and politician.
Born in Clark County, Ill., Harlan moved to Iowa in 1845. In 1850, Harlan was admitted to the bar and practiced in Iowa City. Harlan was elected as a Free Soiler to the United States Senate in 1855, was reelected in 1860, and served from January 29, 1857 until May 15, 1865. Harlan resigned to accept an appointment as Secretary of the Interior in the Cabinet of President Andrew Johnson from May 15, 1865 to July 27, 1866. After resigning from this position, Harlan again was elected to the United States Senate and served from March 4, 1867 to March 3, 1873.
[Source: 'Biographical Directory of the United States Congress, 1774- Present', available at http://bioguide.congress.gov/biosearch/biosearch.asp]
Iowa Delegation - United States Thirteenth Amendment 1863-65
Iowa Delegation - The Road to Civil War
Iowa Delegation - United States Fifteenth Amendment
Iowa Delegation - United States Fourteenth Amendment & The Civil Rights Act of 1866