veteran major league player widely rumored to have been involved in several gambling incidents and attempts to fix games. Representing the only former ballplayer among the group of investigating journalists, Mathewson played a small role in Fullerton's exposure of the 1919 World Series scandal. World War I and afterward Late in the 1918 season, Mathewson enlisted in the United States Army for World War I. His wife Jane was very much opposed to the decision, but Mathewson insisted on going. He served overseas as a captain in the newly formed Chemical Service along with Ty Cobb. When he arrived in France, he was accidentally gassed during a chemical training exercise and subsequently developed tuberculosis, which more easily infects lungs that have been damaged by chemical gases. Mathewson served with the American Expeditionary Forces until February 1919 and was discharged later that month. Although he returned to serve as a coach for the Giants from 1919 to 1921, he spent a good portion of that time in Saranac Lake fighting the tuberculosis, initially at the Trudeau Sanitorium, and later in a house that he had built. In 1923, Mathewson returned to professional baseball when Giants attorney Emil Fuchs and he put together a syndicate that bought the Boston Braves. Although initial plans called for Mathewson to be principal owner and team president, his health had deteriorated so much that he could perform only nominal duties. He turned over the presidency to Fuchs after the season. Death and legacy After contracting tuberculosis, Mathewson moved to the frigid climate of Saranac Lake, New York, in the Adirondack Mountains, where he sought treatment from Edward Livingston Trudeau at his renowned Adirondack Cottage Sanitarium. He died in Saranac Lake of tuberculosis on October 7, 1925. Mathewson is buried at Lewisburg Cemetery in Lewisburg, Pennsylvania, adjacent to Bucknell University. Members of the Pittsburgh Pirates and the Washington Senators wore black armbands during the 1925 World Series. Mathewson had died on the day the series began, October 7. According to Baseball, some of Mathewson's last words were to his wife: "Now Jane, I want you to go outside and have yourself a good cry. Don't make it a long one; this can't be helped." Christy Mathewson Day is celebrated as a holiday in his hometown of Factoryville, Pennsylvania, on the Saturday closest to his birthday. Christy Mathewson Day and Factoryville, Pennsylvania, are the subjects of the documentary,