Lawrence Joseph "Larry" Ellison (born August 17, 1944) is the co-founder and chief executive officer of Oracle Corporation, one of the world's leading enterprise software companies. As of 2011, he is the third wealthiest American citizen, with an estimated worth of $33 billion.
Larry Ellison was born in the Bronx, New York City to Florence Spellman, an unwed 19-year-old. Ellison's biological father was an Italian-American U.S. Air Force pilot, who was stationed abroad before Spellman realized that she had become pregnant by him. After Larry Ellison contracted pneumonia at the age of nine months, his mother determined that she was unable to care for him adequately, and arranged for him to be adopted by her aunt and uncle in Chicago. Lillian Spellman Ellison and Louis Ellison adopted him when he was nine months old. Lillian was the second wife of Louis Ellison, an immigrant who had arrived in the United States in 1905 from Russia. Larry Ellison did not meet his biological mother again until he was 48.
Ellison graduated from Eugene Field Elementary School on Chicago's north side in January, 1958 and attended Sullivan High School at least through the fall of 1959 before moving to South Shore.
He was raised in a Reform Jewish family. Ellison grew up in a two-bedroom apartment in Chicago's South Shore middle-class Jewish neighborhood. Ellison remembers his adoptive mother as warm and loving, in contrast to his austere, unsupportive, and often distant adoptive father, who adopted the name Ellison to honor his point of entry into the USA, Ellis Island. Louis, his adoptive father, was a modest government employee who had made a small fortune in Chicago real estate, only to lose it during the Great Depression.
Ellison was a bright but inattentive student. He left the University of Illinois at Urbana-Champaign at the end of his second year, after not taking his final exams because his adoptive mother had just died. After spending a summer in Northern California, where he lived with his friend Chuck Weiss, Ellison attended the University of Chicago for one term, where he first encountered computer design. In 1964, at 20 years of age, he moved to Northern California permanently.
Ellison has been married and divorced four times. He was married to Adda Quinn from 1967 to 1974. He was married to Nancy Wheeler Jenkins from 1977 to 1978. From 1983 to 1986, he was married to Barbara Boothe: two children were born of this marriage, a son and daughter named David and Megan. Both Megan and David were executive producers of the 2010 Coen Brothers film True Grit.
On 18 December 2003, Ellison married Melanie Craft, a romance novelist, at his Woodside estate. Ellison's late friend Steve Jobs, former CEO and co-founder of Apple, Inc, was the official wedding photographer, and Representative Tom Lantos officiated.
Ellison and Melanie Craft-Ellison divorced in September 2010.
From : www.wikipedia.org