Carl Frederick Rudolf Merkle (December 20, 1888 – March 2, 1956), also documented as "Frederick Charles Merkle," and nicknamed "Bonehead", was an American first baseman in Major League Baseball from 1907 to 1926. Although he had a lengthy career, he is best remembered for a controversial base-running mistake he made while still a teenager.

Born in Watertown, Wisconsin, to Ernst Merkle, a Swiss immigrant, and Amalie Thielmann Merkle, a German American, he was raised in Toledo, Ohio. Merkle played his first Major League game at the age of 18, with the New York Giants in 1907. He was still the youngest player in the National League, and used mostly as a pinch hitter, at the time of his infamous "boner" in 1908. Merkle became the Giants' regular first baseman by 1910 and contributed in that role to three straight pennant winners from 1911 to 1913. He was traded to the Brooklyn Robins in August 1916 and played in his fourth World Series that year. In April 1917, the Robins sold Merkle to the Chicago Cubs (ironically, the team that had saddled him with infamy back in 1908), with whom he continued as the regular first baseman through 1920. In 1918 with the Cubs, Merkle played in his fifth World Series in eight years, though he never won the championship.

From 1921 to 1925, Merkle was the regular first baseman for Rochester in the International League. He returned to the Major Leagues in mid-1925, when he was acquired by the New York Yankees, but appeared in only seven games with the Yankees that year and one in 1926. After one year back in the International League as player-manager for Reading in 1927, Merkle retired.

...
Wikipedia