John F. Carroll

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For the Irish trade unionist, see John Carroll (trade unionist).
For other people with the same name, see John Carroll.
John F. Carroll
John F Carroll-2.jpg
Born 1932
Buffalo, New York
Died 1969
Lackawanna, New York
Known for Third tallest verified human being
Height 8 ft 7.75 in (2.6353 m) (unverified)
Weight 308 lb (140 kg)

John F. Carroll (1932–1969) is one of 17 known people in medical history to have reached a height of 8 feet (2.4 m) or more. He suffered from severe, 2-dimensional spinal curvature (Kyphoscoliosis) and acromegalic gigantism. He had a standing height of 244 centimeters (8 feet 0 inches) on October 14, 1959, but his height would have been 264 centimeters (8 feet 7¾ inches), assuming normal curvature of the spine. He was later measured at 239 centimeters (7 feet 10½inches) in 1968; he had shrunk in stature due to his worsening spinal condition.

Shortly before Carroll's death in 1968 his standing height was 234 centimeters (7 feet 8¼ inches). His corrected height was not recorded but may have been close to nine feet.

Carroll was born in Buffalo, New York and also known as the Buffalo Giant in medical literature. He was third in stature only to Robert Wadlow and John Rogan. His extraordinary growth started at the age of sixteen and continued until his death, despite extensive treatments at Mercy Hospital. At one point he grew seven inches in height in a year. He was buried in Holy Cross Cemetery in Lackawanna, New York.

While in a hospital bed Carroll ran a campaign for Alderman of his district and lost by only a few votes.


  • Acromegalic Gigantism. The Buffalo Giant. American Journal of Medicine. 1961;31:966-76. Prezio, J.A.; Griffin, J.E.; O'Brien, J.J.

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