William Francis Carrigan, nicknamed "Rough", was an American Major League baseball catcher and manager. He played for the Boston Red Sox between 1906 and 1916, and he was a player-manager for the last four of those seasons. In 1915 and 1916, Carrigan's teams won back-to-back World Series. He was said to exert a positive influence on young Red Sox star Babe Ruth, serving as his roommate and his manager. He has the highest postseason winning percentage (.800) of any manager with multiple postseason appearances, and was named to the Honor Rolls of Baseball in 1946.

George Herman "Babe" Ruth was an American professional baseball player whose career in Major League Baseball (MLB) spanned 22 seasons, from 1914 through 1935. Nicknamed "the Bambino" and "the Sultan of Swat", he began his MLB career as a star left-handed pitcher for the Boston Red Sox, but achieved his greatest fame as a slugging outfielder for the New York Yankees. Ruth is regarded as one of the greatest sports heroes in American culture and is considered by many to be the greatest baseball player of all time. In 1936, Ruth was elected to the Baseball Hall of Fame as one of its "first five" inaugural members.