Stephenson is a town in Marinette County, Wisconsin, United States. The population was 3,065 at the 2000 census. The town of Stephenson was organized in 1897 with the name of Crivitz and changed to its current name in 1905. The town is named for Isaac Stephenson, a Republican member of Congress who represented Wisconsin's 9th Congressiona…Stephenson is a town in Marinette County, Wisconsin, United States. The population was 3,065 at the 2000 census. The town of Stephenson was organized in 1897 with the name of Crivitz and changed to its current name in 1905. The town is named for Isaac Stephenson, a Republican member of Congress who represented Wisconsin's 9th Congressional District from 1883-1889 and a US Senator from Wisconsin from 1907-1915.