Adda Quinn holds a permanent place in Silicon Valley history as the first wife of Oracle co-founder Larry Ellison. But reducing her to that single label misses most of her story. Long before Ellison became a household name in tech, Adda Quinn was a young woman building her own path in California — and long after their marriage ended, she went on to lead a substantial career of her own, far removed from software and boardrooms.
This article covers everything currently known about Adda Quinn: her early life, how she met Ellison, their seven-year marriage and divorce, her decades-long career in environmental research, her second marriage, and where she is believed to be today.
Adda Quinn Quick Facts
| Detail | Information |
|---|---|
| Full Name | Adda Quinn |
| Known For | Larry Ellison’s First Wife |
| Nationality | American |
| Birth Date | Not publicly confirmed |
| Met Larry Ellison | Berkeley, California, 1967 |
| Married Larry Ellison | 1967 |
| Divorced Larry Ellison | 1974 |
| Marriage Length | About 7 years |
| Children With Ellison | None |
| Second Husband | George Sublett (married 1990) |
| Career | Business Manager & Project Manager, EPRI |
| Researchers Managed | Approximately 45 PhD-level scientists |
| Annual Budget Managed | Approximately $45 million |
| Reported Residence | Belmont area, Northern California |
Early Life and Background
Where Was Adda Quinn Born and Raised?
Details about Adda Quinn’s childhood remain almost entirely absent from the public record. No confirmed birth date, hometown, or family background has surfaced, which isn’t unusual for someone who never sought celebrity status in her own right. What’s known instead picks up during her adulthood, when she was already living and working in the San Francisco Bay Area during the 1960s — a region on the brink of becoming the epicenter of the global tech industry.
Education and Career Before Meeting Larry Ellison
Little has been documented about Adda’s formal schooling. What is clear is that by 1967 she was working in the Berkeley area, and the professional habits she developed in this period — organization, planning, and comfort managing responsibility — later became defining traits of her career at the Electric Power Research Institute (EPRI). Her ability to eventually oversee millions of dollars in research funding didn’t appear out of nowhere; it was built on this earlier, less-documented foundation.
How Adda Quinn Met Larry Ellison
Their First Meeting in Berkeley, 1967
Adda Quinn and Larry Ellison reportedly crossed paths at a Berkeley employment agency in 1967. Neither of them was famous, wealthy, or established. Ellison was simply a young man with programming ambitions and no clear direction yet, and their connection formed quickly enough that marriage followed within the same year.
What Larry Ellison Was Like Before Oracle
At the time, Ellison was years away from founding Oracle, which didn’t exist until 1977. He was working through programming jobs, testing different career paths, and living on a modest income. Adda knew him at his most uncertain professional stage — a version of Ellison that bears little resemblance to the billionaire executive he later became.
Adda Quinn and Larry Ellison’s Marriage (1967–1974)
Life in a One-Room Apartment
For roughly the first three years of their marriage, the couple lived in a small, one-room apartment — a far cry from the extravagant lifestyle associated with Ellison today. Ellison was reportedly earning around $1,600 a month, modest even by the standards of that era.
Financial Struggles and Lifestyle Differences
Money became a consistent source of friction. Ellison was drawn to outdoor pursuits and wasn’t shy about spending on them — he reportedly bought a bicycle worth about $1,000 and borrowed funds for a $3,000 sailboat, activities like cycling, kayaking, and backpacking filling much of his free time. Adda, by contrast, leaned toward practicality, prioritizing household stability and long-term financial security. Eventually, the couple moved into a small home in Oakland, but the underlying tension around money and lifestyle never fully disappeared.
Marriage Counseling and Growing Tension
As their differences deepened, Adda and Larry reportedly tried marriage counseling to work through the disagreements. It didn’t resolve the core conflict between his desire for independence and adventure and her preference for shared responsibility and stability. Adda later reflected on the relationship as feeling like “a roller coaster” — full of emotional highs alongside real strain.
Why Did Adda Quinn and Larry Ellison Divorce?
Key Reasons Behind the Split
By 1974, after seven years of marriage, the couple’s contrasting approaches to money, responsibility, and lifestyle proved irreconcilable. There wasn’t one dramatic event behind the divorce — it was the accumulation of ongoing personality differences that counseling couldn’t fully bridge.
Timeline: Divorce Before Oracle Was Founded
An important detail often overlooked is timing: Adda and Larry divorced in 1974, a full three years before Ellison co-founded Oracle in 1977. Whatever motivated the split, it had nothing to do with wealth, fame, or business success — none of that existed yet.
Did Adda Quinn and Larry Ellison Have Children?
Adda Quinn and Larry Ellison never had children together during their marriage.
Larry Ellison’s Children From Later Marriages
Ellison went on to have two children — David Ellison and Megan Ellison — with his third wife, Barbara Boothe. Both David and Megan later built prominent careers in the entertainment industry through film and media production. Adda, meanwhile, became a stepmother through her second marriage, gaining two stepsons and, eventually, four grandchildren.
Who Is Larry Ellison? (Brief Context)
From Programmer to Oracle Founder
Larry Ellison was born August 17, 1944, in New York City. After working as a programmer in California through the 1960s and 1970s, he co-founded what became Oracle Corporation in 1977, eventually growing it into one of the world’s largest enterprise software and cloud computing companies. He led Oracle as CEO for decades before transitioning to executive chairman and chief technology officer.
Larry Ellison’s Net Worth Today
Ellison’s fortune, built almost entirely after his marriage to Adda ended, has made him one of the wealthiest people in the world — a dramatic contrast to the financially modest years he and Adda shared in the late 1960s and early 1970s.
Adda Quinn’s Career at EPRI (Electric Power Research Institute)
Business Manager Role in the Environmental Division
After her divorce, Adda Quinn built an entirely independent professional identity at the Electric Power Research Institute (EPRI) in Palo Alto, California, working as a Business Manager within the Environmental Division.
Managing 45 PhD Researchers and a $45 Million Budget
Her responsibilities were substantial by any measure: she reportedly oversaw around 45 PhD-level researchers and managed an annual budget of approximately $45 million, spanning research areas including ecology, climate studies, environmental risk assessment, and land and water quality. She was known for reading every publication her division produced — a habit that reflected genuine engagement with the science, not just administrative oversight.
Transition to Project Management (MGP Sites, Wood Poles, PCBs)
After roughly a decade in that role, Adda moved into project management within EPRI’s Land and Water Quality Program, taking on work related to manufactured gas plant sites, treated wood poles, and polychlorinated biphenyls (PCBs) — environmental contamination issues requiring technical precision and long-term problem-solving.
Adda Quinn’s Second Marriage to George Sublett
Marriage in 1990 and Blended Family Life
Adda married George Sublett, an engineer, in 1990. He brought two sons from a previous relationship into the marriage, making Adda a stepmother and, later, a grandmother of four.
Shared Interests: Horses, Travel, and Adventure
The couple bonded over horseback riding, travel, and an active outdoor lifestyle, spending much of their marriage centered on family and shared adventure rather than public life.
George Sublett’s Accident and Passing in 2010
George suffered a serious horse-riding accident that led to lasting health complications, including brain injury and a later stroke. He passed away in 2010 after roughly two decades of marriage to Adda, who has spoken warmly about the life they built together despite the hardship of his decline.
Adda Quinn’s Hobbies, Travel, and Personal Interests
Global Travels Across Europe, Africa, and Asia
Adda has reportedly traveled extensively — through Europe, Africa, Southeast and Southwest Asia, China, Japan, Mexico, and islands across the Indian Ocean. One notable trip involved joining a dental mission serving the Huarpe Indigenous community in Mendoza, Argentina.
Community and Volunteer Work
Beyond travel, her interests include horseback riding, sailing, skiing, backpacking, gardening, cooking, reading, and needlepoint. She has also quietly supported community causes, including charities focused on children and older adults.
Adda Quinn’s Net Worth
What’s Publicly Known About Her Finances
No verified figure exists for Adda Quinn’s personal net worth. What can be said with confidence is that she built a decades-long professional career carrying real financial and organizational responsibility — and that her finances have always been entirely separate from Ellison’s, since their divorce predated Oracle’s founding by three years.
Where Is Adda Quinn Now in 2026?
Life in Belmont, Northern California
As of 2026, Adda Quinn is reported to live in the Belmont area of Northern California, close to Silicon Valley geographically but far removed from its celebrity culture.
Why She Avoids the Spotlight
She has never maintained a known public social media presence and rarely, if ever, appears in interviews. Her privacy appears to be a deliberate, lifelong choice rather than a passive circumstance — consistent with how she handled her connection to Ellison even decades ago.
Conclusion
Adda Quinn’s story is far bigger than a footnote in Larry Ellison’s biography. She lived through his most uncertain years, walked away from the marriage before Oracle ever existed, and spent the following decades building a serious, independent career managing scientists, budgets, and environmental research at a major institute. Her later marriage, extensive travel, and lasting commitment to privacy round out a life defined by resilience and quiet accomplishment — not by proximity to fame.
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Frequently Asked Questions
Who is Adda Quinn?
She is the first wife of Oracle founder Larry Ellison, married to him from 1967 to 1974, who later built her own career in environmental research management.
How did Adda Quinn meet Larry Ellison?
They reportedly met at a Berkeley, California employment agency in 1967, marrying the same year.
Why did they divorce?
Financial stress and differing lifestyles and priorities led to their 1974 divorce, three years before Oracle was founded.
Did they have children?
No. Ellison later had two children, David and Megan, with his third wife, Barbara Boothe.
What does Adda Quinn do for a living?
She spent decades at EPRI as a business manager and later project manager within its Environmental Division.
Who is George Sublett?
Adda’s second husband, an engineer she married in 1990; he passed away in 2010.
Where is Adda Quinn now?
She reportedly lives privately in Belmont, Northern California.
What is Adda Quinn’s net worth?
No confirmed figure exists publicly.
