 "King Strang" was assassinated in 1856, and in what historian Byron M. Cutcheon would call the "most disgraceful day in Michigan history", Strang's nearly 2,600 Latter Day Saint subjects were driven forcibly from Beaver Island by non-Mormons.With the Mormon population gone, the civil government of Manitou County was abandoned and Manitou was attached in 1861 to Mackinac County.In 1865, the attachment was changed to Leelanau County, which had organized in 1863.