The John Messer Barn is a historic structure within the Great Smoky Mountains National Park in Sevier County, Tennessee, this barn is a different Messer Barn in which valley, in the Great Smoky Mountains of North Carolina, located in the Southeastern United States?
John Messer Barn:  This barn should not be confused with the Messer Barn in Cataloochee, which was built by John's cousin, Will Messer.
i don't know