Rockefeller, David (1915-2017)
David Rockefeller's staff at Chase Manhattan Bank maintained a 5-foot-wide card index of business, personal, civic, and philanthropic contacts, and a set of this card file was shared with, and further maintained by, the Rockefeller family office staff at Room 5600 in Rockefeller Center. David Rockefeller's network of contacts was estimated at 100,000 names documented across 200,000 cards.