James Robert Horner is an American former professional baseball third baseman and first baseman who played ten seasons in Major League Baseball (MLB), primarily with the Atlanta Braves.

The Atlanta Braves are an American professional baseball team based in the Atlanta metropolitan area. The Braves compete in Major League Baseball (MLB) as a member club of the National League (NL) East Division. The Braves were founded in Boston, Massachusetts, in 1871, as the Boston Red Stockings. The club was known by various names until the franchise settled on the Boston Braves in 1912. The Braves are the oldest continuously operating professional sports franchise in North America.