The National Library of Medicine believes this item to be in the public domain., CC0, via Wikimedia Commons
Unknown; part of Brady-Handy Photograph Collection., Public domain, via Wikimedia Commons
A. Berghaus and C. Upham, published in Frank Leslie's Illustrated Newspaper., Public domain, via Wikimedia Commons
The National Library of Medicine believes this item to be in the public domain., CC0, via Wikimedia Commons
