Hippo Vaughn got his nickname because of his size (he was about the same size as Rick Reuschel), but he was also one of the best Cubs pitchers of all-time. He was the star of the 1918 pennant winners (won the pitching triple crown that year). Players on the 1919 White Sox believed that those 1918 Cubs threw that World Series, but if they did, no one suspected Hippo Vaughn was part of it. He started three games in that series, and although he was only 1-2, his ERA was 1.00 and he struck out 17 batters.

Hippo won the ERA title the following year too, and was a 20-game winner 5 times, a 19-game winner once and a 17-game winner another time in his nine seasons with the Cubs. During the years 1914-1920 he was one of the best pitchers in the entire National League. (Read about his greatest game here)

Hippo's career ended in 1921 when manager Johnny Evers suspended him for thirty days for insubordination. In 1922, he got into a salary dispute, and chose to pitch for a semi-pro team instead. He was reinstated by Commissioner Landis after 8 years of ineligibility in 1930. He went to spring training with the Cubs in 1931 but failed to make the team at age 43.