The Americans joined the new league and Moorehouse played with them until 1937 leading that side to two National Challenge Cup titles.

The Americans accepted the offer from FIFA to participate in the World Cup and Moorhouse would play in all three matches in Uruguay as a defender.

The first U.S. game, a 3–0 victory over Belgium on July 13, 1930, at Parque Central in Montevideo, made Moorhouse the first native-born Englishman to play in the World Cup.

Because the U.S. had applied late for entry into the Cup, the team had to play a qualification match against Mexico in Italy.

[6] While the National Soccer Hall of Fame lists Moorhouse's date of death as July 13, 1982,[clarification needed] several other sources have conflicting information.

Colin Jose, who has served as a historian with the Hall of Fame, lists the date as October 12, 1943, in his history of the American Soccer League.

[7] Finally, Dave Litterer, who writes extensively on U.S. soccer, noted that in 1943, "ASL veterans mourned the passing of George Moorhouse, one of its premier players during the 1930s and a frequent participant with the National team, having earned a cap in every one of its games between 1930 and 1938.