By A Mystery Man Writer
Return of the John Snow Water Pump
Broad Street Cholera Pump – London, England - Atlas Obscura
John Snow
File:Pump Handle - John Snow 2.jpg - Wikipedia
Mapping disease: John Snow and Cholera — Royal College of Surgeons
John Snow - Wikipedia
No 127 hi-res stock photography and images - Page 7 - Alamy
John Snow and the removal of the Broad Street pump handle
Books: en.wikipedia.org
Return of the John Snow Water Pump
Return of the John Snow Water Pump