Per See 17 USC 302, "Works of unknown authors or where the author's death date is unknown are copyrighted until the shorter of 95 years since the first publication or 120 years since their creation".
==Summary== {{Information |Description={{en|The {{w|Joseph Smith Mansion House}} in {{w|Nauvoo, Illinois|Nauvoo}}, {{w|Illinois}} is a building constructed by {{w|Joseph Smith, Jr.}}, the founder of the {{w|Latter Day Saint movement}}. Smith used the hous