INTRODUCTION AND OBJECTIVE: George Emerson Brewer (1861-1939) is a little known nor recognized proto-urologist from New York City an early member of the American Urological Association. He was an internationally known innovative surgeon who became a colonel and early volunteer leading the U.S. Base Hospital, No. 2 on May 15, 1917. Here his unit provided many firsts for U.S. military medical units but one particular life and death struggle beckons. METHODS: A review of the literature of all aspects of Brewer′s remarkable life and writings was performed, including written materials and photographs at Columbia University′s Archives. We also had grateful access to the war journals of Harvey Cushing. RESULTS: Brewer was born in Westfield, NY on July 29, 1861 to Francis B. Brewer and Susan H. Wood. He attended Hamilton College and did two years of medical studies at the University of Buffalo prior to finishing his M.D. at Harvard. His mentors were luminous surgeons- Robert Lovett, John Munro and Leonard Wood and he finished in Washington, D.C. and Johns Hopkins under Welch. He returned to NYC as assistant to proto-urologist Fessenden Nott Otis. He arose quickly to the top in clinical surgery publishing widely on basic surgical methods that would make him prominent amongst America′s general surgical elite. His team at Columbia Presbyterian organized and early created a team to be deployed if needed during WWI. Late in the afternoon of Wednesday August 29, 1917 at about 5 P.M. a 4.2 inch shell exploded near the one fateful Royal Field Artillery unit and Edward Revere Osler, only surviving child of Sir William Osler was critically injured (thigh, abdomen and chest wounds) along with his Battery Commander Captain Lym Taverner and six others. He was rushed to the 47th Casualty Clearing Station and onwards to the U.S. Base Hospital No.2 into the hands of Brewer and his fellow surgeon William Darrach were the first to receive the injured Revere. Harvey Cushing and George Crile were called and emergency surgery was begun at about 10 PM. ″Brewer, Cushing & I were in consultation, the splendid Durrach in charge. The long marquee tent was quiet and dim; the end was fast approaching. The boy′s features were serene and a faint smile illuminated his face when he was told that his father′s American friends were there.″ CONCLUSIONS: Most of the reported history of one of an iconic personal tragedy of WWI, the injury and heroic surgery on Paul Revere′s great-great grandson and son of Sir William and Lady Grace Osler comes to us via Harvey Cushing. The rest of the story about the two surgeons who actually operated on Edward Osler is almost untold and unsung. ″A wise physician, skilled our wounds to heal, Is more than armies to the public weal.″ Pope Source of Funding: None