Ca. 1855          Address Unknown, Reading, Massachusetts.

Information from an engraving in the collection of the Massachusetts Historical Society.  “View of the Grounds and Structures of the United States Agricultural Society at its third exhibition in Boston, 1855.  From an Ambrotype by T. W. Hartshorn, Reading.

Timothy W. Hartshorn was not recorded in other photographic directories.  Hartshorn is recorded in A Directory of Massachusetts Photographers 1839-1900 as being active in Reading, Massachusetts in 1865-1869.