Custer, Wisconsin Custer, Wisconsin Custer is an unincorporated community located in the town of Stockton, in Portage County, Wisconsin, United States. The origin of the communities name is not confirmed but general consensus is it was named after Lt. Col. George Armstrong Custer, who was defeated during the battle of the Little Big Horn in 1876. The Custer post office was established in December, 1876 just six months after the battle of Little Big Horn. The community was originally called "Dawson". The only evidence to where this name came from was an August 8, 1854 land deed marking the sale of a
George Armstrong Custer Michigan Infantry across the Chickahominy River above New Bridge. The attack was successful, resulting in the capture of 50 Confederate soldiers and the seizing of the first Confederate battle flag of the war. McClellan termed it a "very gallant affair" and congratulated Custer personally. In his role as aide-de-camp to McClellan, Custer began his life-long pursuit of publicity. Custer was promoted to the rank of captain on June 5, 1862. On July 17, he was reverted to the rank of first lieutenant. He participated in the Maryland Campaign in September to October, the Battle of South Mountain on September 14,