Complex sentence: According to the 1900 census he was born in Jan, 1830 in Maine, although other sources give his birthplace as either Ireland or Lyon, France and after immigrating to the United States he joined the United States Army, serving as a soldier in the cavalry.
Split into simpler sentences: According to the 1900 census he was born in Jan, 1830 in Maine, although other sources give his birthplace as either Ireland or Lyon, France. He joined the United States Army, serving as a soldier in the cavalry.