PETER KELLOGG

$3.4

BILLION  SELF-MADE SCORE: $ SOURCE: INVESTMENTS AGE: 77 RESIDENCE: SHORT HILLS, NJ PHILANTHROPY SCORE: In 1973 Kellogg went to work for his father at brokerage house Spear, Leeds & Kellogg. Eventually he took control of the company and sold it to Goldman Sachs for $6.5 billion in 2000. Today he is chairman of reinsurance outfit IAT, which he started back in 1986.