BORN: October 28, 1955

NATIVE CITY: Seattle, Washington

EDUCATION: Public elementary school. Entered private Lakeside School at age 12. Dropped out of Harvard University junior year.

LITTLE KNOWN FACT: His family called him "Trey," in reference to the III after his name.

HOBBIES: Bridge, golf, reading, philanthropy. Donated $6 billion to his charitable foundation in August 1999, the largest bequest ever by a living individual.

FAMILY: wife, Melinda; daughter, Jennifer, born 1996; son, Rory, born 1999.