John Bachelder

John Badger Bachelder (September 29, 1825 – December 22, 1894) was a portrait and landscape painter, lithographer, and photographer, but best known as the preeminent 19th-century historian of the Battle of Gettysburg in the American Civil War. He was a dominant factor in the preservation and memorialization of the Gettysburg Battlefield in the latter part of the century.

Bio from Wikipedia - See more on en.wikipedia.org Text under CC-BY-SA license