Elton P. "Ice Box" Chamberlain (November 5, 1867 – September 22, 1929) was an American professional baseball player.

In several seasons, Chamberlain finished in his league's top ten in a number of pitching categories, including wins, earned run average, strikeouts, and shutouts.

[1] After his playing days, he was hired as a baseball umpire and later announced he was becoming a boxer, but neither venture appears to have worked out.

[4] Chamberlain made his major league debut with the Louisville Colonels of the American Association on September 13, 1886.

When the umpire did not respond to Louisville's complaints, Chamberlain's manager told him to run forward out of the box when he let go of his pitches.

That feat was not repeated in the major leagues until Greg Harris, with the Montreal Expos, switched arms for the ninth inning of a 1995 game.

However, not long after Chamberlain joined the club, pitcher Nat Hudson left the team to get married.

[15] In August, he gave up the longest home run that had been hit at Boston's Congress Street Grounds.

[18] Before the 1893 season, Chamberlain indicated his displeasure with the climate in Cincinnati and said that he hoped to pitch for New York or Philadelphia in the coming year.

[8] On May 30, 1894, Chamberlain was the pitcher when Bobby Lowe became the first major league player to hit four home runs in one game.

[21] Chamberlain had agreed to play for the Cleveland Spiders in 1895,[8] but instead he joined a Class D baseball team out of Warren, Ohio in the Iron and Oil League.

Years later, Wagner recalled Chamberlain as an experienced pitcher who shared his baseball knowledge with his young teammates.

[1] Chamberlain also hit nine home runs, including a grand slam, during his major league career.

[2] In early 1898, The Montreal Gazette reported that NL president Nicholas Young signed Chamberlain as an umpire for the coming season.

He challenged Jack Baty, a black fighter, to a boxing match and posted a $500 bet on the fight.

[27] In 1904, Sporting Life reported that the pitcher had a brother, F. Earl Chamberlain, who was named a Pacific Coast League umpire.