|Place of birth||Brooklyn, New York|
|Allegiance||United States of America|
|Service/branch||United States Navy|
|Unit||USS New Hampshire|
|Awards||Medal of Honor|
Born in 1847 in Brooklyn, New York, McCarton joined the Navy from that state. By January 4, 1882, he was serving as a ship's printer on the training ship USS New Hampshire. On that day, while New Hampshire was off Coaster's Harbor Island in Newport, Rhode Island, he and another sailor, Quartermaster Henry J. Manning, jumped overboard in an attempt to save Second Class Musician Jabez Smith from drowning. For this action, both McCarton and Manning were awarded the Medal of Honor three years later, on October 18, 1884.
McCarton's official Medal of Honor citation reads:
For jumping overboard from the U.S. Training Ship New Hampshire off Coasters Harbor Island, near Newport, R.l., 4 January 1882, and endeavoring to rescue Jabez Smith, second class musician, from drowning. 
- ↑ 1.0 1.1 "Medal of Honor recipients - Interim Awards, 1871–1898". Medal of Honor citations. United States Army Center of Military History. August 5, 2010. http://www.history.army.mil/html/moh/int1871-98.html. Retrieved September 5, 2010.
- "John McCarton". Hall of Valor. Military Times. http://valor.militarytimes.com/recipient.php?recipientid=1773. Retrieved September 5, 2010.
- "John McCarton". Claim to Fame: Medal of Honor recipients. Find a Grave. http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=52828886. Retrieved September 5, 2010.
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