Complex sentence: Soon after arriving in Australia, on January 27,1939 he changed his name to John Hans Straw, and then on September 25,1953 he changed it to John Hans Stroh due in part to the encouragement of his new wife, Ann Roberts.
Split into simpler sentences: Soon after arriving in Australia, on January 27,1939 he changed his name to John Hans Straw. Then on September 25,1953 he changed it to John Hans Stroh due in part to the encouragement of his new wife, Ann Roberts.