John Blair Deaver (July 25, 1855 - September 25, 1931) was an American surgeon, the chief of surgery at the German Hospital in Philadelphia.
[4][5] In his early days as a doctor, Deaver worked alongside his physician brothers making house calls and performing surgeries in patients' homes.
As a proponent of immediate surgery to address appendicitis, Deaver's approach was often considered aggressive at a time when surgical interventions were not the norm.
In 1924 he stated, "If when I am taken to my reward, I am known as nothing else, I shall be satisfied to have as my epitaph: 'He fought a good fight- his life was a continuous war on the vermiform appendix.
He was among the founders of the American College of Surgeons, President of the Interstate Post-Graduate Medical Association of North America, and member of many other surgical societies.