U.S. philantropist and oil magnate John D. Rockefeller gives a dime to a child, in this undated picture. Rockefeller was noted for his habit of giving coins as tips to all and sundry.

Billionaire John D. Rockefeller (July 8, 1839 to May 23, 1937) continues to rank as one of the richest men in modern times.

Born June 12, 1915, as the sixth child of John D. Rockefeller Jr. and Abby Aldrich Rockefeller, David Rockefeller graduated from Harvard in 1936 and earned a doctorate in economics from the ...