William Lavier Killefer (October 10, 1887 – July 3, 1960), nicknamed "Reindeer Bill" was an American professional baseball player, coach and manager. He played in Major League Baseball as a catcher for the St. Louis Browns, Philadelphia Phillies, and Chicago Cubs. Killefer, who was nicknamed "Reindeer Bill" due to his speed afoot, is notable for being the favorite catcher of Hall of Fame pitcher Grover Cleveland Alexander and, for being one of the top defensive catchers of his era. After his playing career, he continued to work as a coach and a manager for a Major League Baseball career that spanned a total of 48 years. Major League career Killefer made his major league debut at the age of 21 with the St. Louis Browns on September 13, 1909. After the 1910 season in which the Browns finished in last place, Killefer was released to the Buffalo Bisons of the Eastern League. Under the tutelage of Bisons' manager George Stallings, Killefer developed into a refined catcher. His contract was purchased by the Philadelphia Phillies on August 19, 1911, and he played his first game as a starter on October 3. The Phillies pitcher on that day was Grover Cleveland Alexander, and the game marked the first of 250 times the pair teamed up as a battery in the major leagues. Although he was a light hitter, Killefer became known for his strong defensive skills. In 1913, he led National League catchers with 166 assists, 130 baserunners caught stealing, a 50.6% caught stealing percentage, and finished second in putouts and fielding percentage. In 1914, Killefer made news when it was reported that he had signed with the Chicago Whales of the Federal League, although he denied the report. When the Phillies offered him a salary increase, he decided to sign with the Phillies, which led the Federal League to file a lawsuit against him and the Phillies. A judge ruled against the Federal League and Killefer remained with the Phillies. From 1915 to 1917, Alexander and Killefer solidified their reputation as the best battery in baseball, with Alexander posting three consecutive 30-win seasons. Killefer had one of his best seasons for the Phillies in 1917. He led National League catchers with a .984 fielding percentage, as well as in putouts, double plays, and total chances. He also had one of his best seasons offensively with a .274 batting average. After the