Harlan County, Nebraska: History
Prior to 1870, the portion of the Republican valley that now includes Harlan County was a prized hunting ground for indigenous peoples, and their efforts to keep intruders away deterred white settlement in the area. The defeat of the Sioux at the Battle of Summit Springs in 1869 largely eliminated this threat, and several parties were organized to explore the agricultural possibilities of the area.
A party of forty men from eastern Nebraska settled near the site of present-day Orleans in August 1870. In 1871, a party from the Wyoming Territory, led by Thomas Harlan, settled near present-day Alma, which was named after a settler's daughter. In that year, Harlan County was separated from Lincoln County by the Nebraska state legislature. Accounts differ as to the county's namesake: either Thomas Harlan, or James Harlan, who was U.S. Secretary of the Interior between 1865 and 1866.