Barney Ross was an American professional boxer who became a world champion in three weight divisions: lightweight, light welterweight, and welterweight. Born in 1909 in New York City, Ross overcame adversity in his youth and joined the Marines, where he developed his boxing skills. Known for his toughness and resilience in the ring, he rose to prominence during the 1930s and retired in 1938 with an impressive record. Ross is remembered as one of the greatest Jewish boxers of all time.