John Pierpont "Jack" Morgan Jr. was an American banker, finance executive, and philanthropist. He inherited the family fortune and took over the business interests including J.P. Morgan & Co. after his father J. P. Morgan died in 1913.
After graduating from St. Paul's School and Harvard, Morgan trained as a finance executive working for his father and grandfather. He became a banking financier, a lending leader, and a director of several companies. He supported the New York Lying-In Hospital, the Red Cross, the Episcopal Church, and endowed the creation of a rare book and manuscript collection at the Morgan Library.
Morgan brokered a deal that positioned his company as the sole munitions and supplies purchaser during World War I for the British and French governments, bringing his company a 1% commission on $3 billion. He was also a banking broker for financing to foreign governments both during and after the war.