John Pierpont Morgan, Jr., (born Sept. 7, 1867, Irvington, N.Y., U.S. died March 13, 1943, Boca Grande, Fla.), American banker and financier, the head of the Morgan investment banking house after the death of his father, John Pierpont Morgan, Sr. He graduated from Harvard University in 1889 and became a member of his father’s banking firm, J.P. Morgan and Company, in 1892, working in the firm’s London branch for eight years. He succeeded his father as head of the firm in 1913 upon the latter’s death, becoming heir to an estate of more than $50,000,000. Morgan had developed a deep affection