He was also know as the elephant man. The link has much more info Joseph Merrick had severe scoliosis (twisted spine) and stood 5 feet 2 inches tall. If he'd had a normal spine he would have been a bit taller.
Joseph Merrick was born on August 5, 1862 and died on April 11, 1890. Joseph Merrick would have been 27 years old at the time of death or 149 years old today.
It was most recently determined that Joseph Merrick suffered from a combination of neurofibromatosis I and Proteus Syndrome. He was known as the "Elephant Man".