swats were made off him. ... Hash Mitchell, the mystery that came from nowhere to pitch four straight victories for the Seals ... Every one watched Mitchell in the hope that they might guess who he is by looking at him, and while they were gazing they saw some real spit ball pitching that was remarkable for the amount of juice he used to deceive the local batsmen." The following week, the buzz surrounding "Mysterious Mitchell" continued to grow. Following a game in San Francisco, the press reported that Mitchell remained the focus of attention:"Mysterious Mitchell furnished the sensation at Recreation Park once more this afternoon when 8000 wildly excited fans upset baseball tradition. ... Until after the game the twirler created as much interest and excitement as the contest itself as there was still more to follow. He was the center of a throng as he left the stand and when he went to the offices of the baseball company, several hundred people gathered to look at him and call for a speech." On September 19, 1910, Chicago sporting writers identified Mysterious Mitchell based on a photograph published by the Los Angeles Times as Fred Walker, the former pitching star for the University of Chicago. The press reported that Walker had signed earlier in the summer with the New York Giants but "got into trouble with a chambermaid at a hotel where he stopped, who accused the young pitcher of attempted assault." Following the accusation, Walker had disappeared leaving no trace until his photograph appeared in the Los Angeles Times. For the rest of his career in baseball, Walker was known as either "Mysterious Walker" and "Mysterious Mitchell." 1911–1916 In 1911, Walker coached the baseball team for the Oregon Aggies. His Oregon Aggies team finished 8–7 and lost the championship by a half game. During the winter of 1911–1912, Walker served as the coach for a basketball team in San Francisco. He was discharged in January 1912 after striking a referee in an altercation that grew out of a disagreement in a game. Members of the team petitioned to have Walker reinstated, contending that the referee's conduct justified the blow. In 1912, Walker signed with the Cleveland Indians and appeared in one game, pitching one inning and giving up no hits and no earned runs. In the fall of 1912, Walker served as a football coach at Carnegie Tech.