Dunn County, North Dakota: History
On March 9, 1883, the Dakota Territory legislature authorized the creation of a new county, using territory partitioned from Howard County (which is now extinct). The county organization was not affected at that time, but the county was not attached to another county for judicial purposes.
The county boundaries were altered in 1883, and on November 3, 1896, the legislature ordered Dunn dissolved, with its territory assigned to Stark County. However, the state supreme court overturned the legislature's act on May 24, 1901; in effect re-creating Dunn County. The county was still not assigned to another county. This was resolved on March 10, 1903, when the county was assigned to Stark County for judicial purposes.
On March 13, 1903, the legislature again voted to dissolve Dunn County, but again (during the 1905 session) the state supreme court voided the act. Dunn County continued to be attached to Stark County. However, on January 18, 1908, the county organization was affected, and Dunn became a standalone county. In the process, Dunn gained a tract of previously unattached land from Stark County, enlarging its boundary. The configuration thus created has remained to the present. The county was named for John Piatt Dunn, who opened the first drugstore in North Dakota, and who was a civic and commercial leader during the early history of Bismarck.