Amerikansk ø i Lake Erie i Ohio. Krigsfanger
på øen i forbindelse med USAs borgerkrig. Se bl.a.
Johnson’s Island Preservation Society og Depot of Prisoners
Of War, Johnson’s Island, Sandusky Bay, Ohio.
Litteratur
Barbière, Joseph: Scraps from the prison table, at Camp Chase and Johnson's Island. (1868)
http://www.archive.org/details/scrapsfromprison01barb