Key West in Monroe County, Florida — The American South (South Atlantic)
The Hospital
Fort Jefferson
| | Dry Tortugas National Park | |
Though Fort Jefferson was considered a healthful post, the hospital register for 1862-1863 recorded treatments for 86 percent of the 580 men here. Eighteen percent had D & D (diarrhea and dysentery) and 19 percent came down with fevers.
Yellow fever was a mysterious, terrifying killer that seemed to come from nowhere. Not until 1900 was it proved that the disease was transmitted by a mosquito, aedes aegypti. From two to eight weeks after drinking yellow fever blood, this insect is increasingly dangerous.
The worst epidemic of yellow fever came in 1867. Of 400 people here, 270 were sick and 38 died, including Dr. Joseph Smith, the post surgeon, his little boy, the four hospital nurses, and Commandant Valentine Stone and his wife. Dr. Samuel Mudd, a prisoner, took over Dr. Smith's post. He was joined by Dr. Daniel Whitehurst of Key West, and later by Dr. Edward Thomas.
The fever struck again in 1873, when half of some 24 cases died. This epidemic was followed by a damaging hurricane, and the Army decided to abandon Fort Jefferson. The garrison left in 1874.
(caption)
"I could do more by a few consoling and inspiring words, than with all the medicine known to me."
Dr. Mudd
Erected by National Park Service, U.S. Department of the Interior.
Topics. This historical marker is listed in these topic lists: Forts and Castles • Parks & Recreational Areas • Science & Medicine. A significant historical year for this entry is 1862.
Location. 24° 37.769′ N, 82° 52.349′ W. Marker is in Key West, Florida, in Monroe County. It can be reached from no nearby street. This marker is located within Fort Jefferson, Dry Tortugas National Park. Touch for map. Marker is at or near this postal address: Fort Jefferson - Key West, Key West FL 33040, United States of America. Touch for directions.
Regionally, this marker is on the Florida Keys. It is also in the American South and on the Gulf Coast. Globally, it is in the North Atlantic Region, North America, a Gulf of Mexico state, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Spain, the territory of the Mississippian Culture, one of the Confederate States of America, and the Antebellum South.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Keeping Powder Dry and Safe (a few steps from this marker); Defending US Commerce (within shouting distance of this marker); Catching Rain (within shouting distance of this marker); Parade Ground Panorama (within shouting distance of this marker); Red-Hot Cannonballs (within shouting distance of this marker); Traverse Magazine (about 300 feet away, measured in a direct line); Soldiers' Barracks (about 300 feet away); Rifled Cannon (about 300 feet away). Touch for a list and map of all markers in Key West.
Also see . . .
1. Dry Tortugas National Park. (Submitted on June 3, 2023, by Brandon D Cross of Flagler Beach, Florida.)
2. Quarantine Hospital and Cemetery Found Underwater Off the Coast of Florida. (Submitted on June 3, 2023, by Brandon D Cross of Flagler Beach, Florida.)
Credits. This page was last revised on February 8, 2026. It was originally submitted on June 3, 2023, by Brandon D Cross of Flagler Beach, Florida. This page has been viewed 269 times since then and 28 times this year. Photos: 1, 2. submitted on June 3, 2023, by Brandon D Cross of Flagler Beach, Florida. • Bernard Fisher was the editor who published this page.

