Complex sentence: Michael Harry de Young (September 30,1849-February 15,1925), an American journalist and businessman, born in St. Louis, Missouri moved with his family moved to San Francisco, California while he was still young.
Split into simpler sentences: Michael Harry de Young (born September 30,1849 in St. Louis, Missouri; died February 15,1925) was a U.S. journalist and businessman. His family moved to San Francisco, California while he was still young.