Still the best of the many biographies of J. P. Morgan is Frederick Lewis Allen’s The Great Pierpont Morgan , published in 1949. Allen’s The Lords of Creation (1935) remains a vivid and authentic picture of the financial world in which Morgan lived. For a detailed institutional history of the Morgan bank, see Vincent P. Carosso’s The Morgans, Private International Bankers, 1854-1913 (Harvard University Press, 1987). J. Pierpont Morgan: An Intimate Biography (1939), by Morgan’s son-in-law Herbert L. Satterlee, is exactly that, looking at Morgan close up with no great objectivity. The Pierpont Morgan Library, 29 East Thirty-sixth Street, New York, NY 10016, is open Tuesday through Saturday, 10:30 A.M. to 5:00 P.M. , and on Sundays, from 1:00 to 5:00 P.M. For further information call 212-685-0610.