John B. Heywood was a photographer in 19th-century United States. He worked in Boston, Massachusetts, c. 1856-1861. Examples of his photographs reside in the New York Public Library and the Massachusetts Historical Society. References External links Flickr. Hand-colored daguerreotype of Nathaniel Holmes Bishop at age 23, credited to Heywood & Heard of Boston, 1860. Image gallery Year of birth missing Year of death missing Photographers from Massachusetts Artists from Boston 19th century in Boston 19th-century American photographers