Complex sentence: John J. Spearman (born December 17,1824) was a 19th century American iron manufacturer, foremost among the iron manufacturers of his era, and for many years identified with the banking interests of Sharon, Pennsylvania.
Split into simpler sentences: John J. Spearman (born December 17,1824) was a 19th century American iron manufacturer. Spearman was foremost among the iron manufacturers of his era, and for many years was identified with the banking interests of Sharon, Pennsylvania.