Complex sentence: John Clarence Cudahy (December 10,1887--September 6,1943) was a real estate developer, American ambassador to Poland, Belgium and Luxembourg, and also minister to the Irish Free State.
Split into simpler sentences: John Clarence Cudahy (December 10,1887--September 6,1943) was an American real estate developer and diplomat. In the years leading up to World War II, Cudahy served as United States ambassador to Poland, Belgium and Luxembourg, and minister to the Irish Free State.