Simplify the following text for a Grade 3 native English-speaking person.
Original: At the outbreak of war in Europe in 1939 , Szell was returning via the U.S. from an Australian tour ; he ended up settling with his family in New York City .
Simplified: When World War II started in 1939 Szell was in the U.S. on his way to Europe after having toured Australia . He stayed in the U.S. and settled with his family in New York City .