MIDDLEBURY — Can a simple tree fungus be a historical document? On Oct. 16, at 1 p.m., as part of the Sheldon’s monthly exhibit “Hidden Treasure Series,” Archivist Eva Garcelon-Hart and Middlebury College Professor Bill Hart will discuss a unique rendering of the John Brown farmstead in North Elba, N.Y., on a 19th century tree fungus. The fungus along with several stereographic photographs depicting the Brown cemetery grounds were donated to the Sheldon Museum in 1891 and will be on display through the mont … (read more)