Buffalo was the host of the
Pan-American Exposition in 1901. That September, President
William McKinley, less than a year into his second term, was giving a speech at the
Temple of Music on the Exposition grounds when
Leon Czolgosz came from the crowd and shot him twice at point-blank range. McKinley was taken to a hospital on the fairgrounds. It took nearly 40 minutes for the first surgeon to show up. Herman Mynter, a general surgeon from Buffalo, was the first to diagnose the president. Not long after Mynter's examination was finished,
Matthew Derbyshire Mann arrived. After the two talked, it was agreed upon to perform the abdominal exploration. President McKinley agreed to the exploration. Work was done by Mann to try to find the bullet and treat the wounds. Efforts were made to contact Park, but he was in the middle of a neck dissection at Niagara Falls Memorial Hospital. As described years later by Park's son, the messenger ran into the operation room and told Park that he was needed immediately. Park is claimed to have replied "Don't you see, I can't leave. I am in the middle of a case even if it were for the President of the United States?"; the messenger replied, "Doctor, it is for the President of the United States." Park proceeded to finish the operation. Despite the importance of the situation, Park was only able to get to the exposition hospital via a train. The train engine and coal car sent to Niagara Falls to pick him up and return to Buffalo held the record time between the two points at that time. The train was driven by Charles Meyers and was the only train allowed into the Pan Am. Meyers was known after that as Pan American Charlie. Once Park arrived, Mann was about to close up McKinley and asked Park if there should be any placement of drains. Park told Mann that he was the best man to make that decision given the scenario. Mann decided not to drain the abdomen since there was no excess blood or fluid around to be drained. Park arranged for some nurses from the exposition to look over McKinley at the Milburn home until nurses from the army could arrive. Despite some promising results McKinley died in the Milburn home. ==Selected publications==