Complex sentence: With the death of brother Charles, John was now the last of the Ringling brothers and although other family members had stock in the company, as President he continued to manage the circus in the years prior to The Great Depression.
Split into simpler sentences: With the death of brother Charles, John was now the last of the Ringling brothers. Although other family members had inherited stock in the company, as President he continued to manage the circus in the years prior to The Great Depression.