Resources
http://www.boscofire.com/the-history-of-the-fire-hydrant-fire-plug.html
http://www.firehydrant.org/pictures/hydrant_history.html
http://en.wikipedia.org/wiki/Fire_hydrant
http://en.wikipedia.org/wiki/Frederick_Graff
http://www.firehydrant.org/pictures/hydrant_history.html
http://en.wikipedia.org/wiki/Fire_hydrant
http://en.wikipedia.org/wiki/Frederick_Graff