Correction notice — August 7, 2026: An earlier version of this page incorrectly identified Adda Quinn as Sharon Stone’s youngest adopted son. Sharon Stone’s youngest son is Quinn Kelly Stone, not Adda Quinn. The previous article was removed and this page was rebuilt from verified sources. Kentfaith.de regrets the error.
Quick answer
Adda Quinn is best documented as the first wife of Oracle co-founder Larry Ellison. They married in 1967 and divorced in 1974, before Ellison co-founded the business that became Oracle. Historical records also document Quinn’s own professional work in environmental research at the Electric Power Research Institute (EPRI), where she was identified as a project manager and contributor to research on soil contamination and environmental issues.
Publicly available information about her birth, education, family background, finances and present life is limited. Reliable sources do not support the detailed ages, net-worth figures or current-location claims repeated on many biography websites.
| Verified detail | What reliable sources establish |
|---|---|
| Full name | Adda Quinn |
| Best known for | Larry Ellison’s first wife |
| Marriage | 1967–1974 |
| How they met | At a Berkeley employment agency, according to a published Ellison biography |
| Documented work | Project and environmental research work at EPRI |
| Documented community activity | Equestrian-trail and environmental advocacy reported in 2004 |
| Birth date and age | Not reliably established in the sources reviewed |
| Net worth | Not publicly verified |
| Current residence or occupation | No reliable recent information located |
Who is Adda Quinn?
Adda Quinn appears in most accounts of Larry Ellison’s early adulthood because she was married to him years before Oracle made him one of the technology industry’s most recognizable executives. However, describing her only as “Larry Ellison’s first wife” leaves out the professional record that can actually be verified.
An Encyclopedia.com biography of Larry Ellison records that Ellison and Quinn married in 1967 and divorced in 1974. Biography.com independently gives the same marriage dates. EPRI publications and contemporary local reporting later connect Quinn to environmental research, project work and community advocacy.
That is the reliable outline. Her exact birth date, birthplace, parents, siblings and educational history are not established by the credible sources reviewed for this article. Rather than turn those gaps into speculation, this biography keeps them open.
She is not Sharon Stone’s son
The names “Adda Quinn” and “Quinn Stone” have been incorrectly combined on some web pages. They refer to different people.
Sharon Stone’s youngest son is Quinn Kelly Stone, born in June 2006. A current People profile of Sharon Stone’s children identifies her sons as Roan, Laird and Quinn. It does not identify anyone named Adda Quinn Stone.
Adda Quinn, by contrast, is the woman documented in biographies of Larry Ellison and in historical EPRI materials. There is no verified family connection between her and Sharon Stone.
Meeting Larry Ellison in Berkeley
According to the Encyclopedia.com account, Ellison moved to Berkeley, California, in 1966 and met Quinn at an employment agency. They married in 1967.
The same source describes a financially modest beginning. It reports that the couple lived in a one-room apartment for three years before buying a house in Oakland in 1970. During this period Ellison moved among computer-related jobs and spent heavily on interests that included sailing.
This was well before Oracle. Ellison and his partners established Software Development Laboratories—the company that eventually became Oracle—in 1977, three years after his marriage to Quinn ended.
Their marriage and 1974 divorce
Quinn and Ellison were married for approximately seven years. Both Encyclopedia.com and EBSCO’s Larry Ellison biography place the marriage between 1967 and 1974.
Later profiles often explain the divorce through Ellison’s unstable career path and spending habits. Those explanations should be treated as reported biographical accounts, not as a complete statement from both former spouses. A 2015 Maxim profile of Ellison attributed one concise description directly to Quinn: Ellison had “Champagne tastes on a beer budget.”
Beyond that observation, there is little reason to manufacture drama. The documented fact is that the marriage ended in 1974, before Ellison founded the company that became Oracle.
Adda Quinn’s documented career at EPRI
The strongest evidence about Quinn’s life outside her former marriage comes from the Electric Power Research Institute.
An official EPRI project brief, NEP Uses Moses Model to Test Substation Spill-Containment Structures, identifies Adda Quinn as a project manager in EPRI’s Environment Division. An EPRI Journal issue from 1994 also credits Ishwar Murarka and Adda Quinn of the Environment & Vital Issues Business Unit on work involving the remediation of contaminated former manufactured-gas-plant sites.
Her connection to that research continued into the following decade. A 2000 EPRI report, Chemical Source Attribution at Former MGP Sites, acknowledges Quinn for her support of research in environmental forensic chemistry.
These primary records support a clear conclusion: Quinn had a genuine professional connection to environmental research and project management. They do not, however, establish every job title, annual budget or team size claimed by later celebrity-biography sites. Those additional numbers should not be repeated without a reliable original record.
Environmental and equestrian advocacy
Quinn also appeared in local reporting for work at the intersection of environmental research and equestrian access.
In March 2004, The Almanac reported that the San Mateo County Mounted Patrol had named her its Outstanding Horseperson-Citizen of the Year. The article described her work researching the environmental effects of horse use on trails and noted her background researching soil contamination for EPRI.
The report also said Quinn had co-founded EnviroHorse, raised funds for research, volunteered with trail patrols and committees, and wrote newsletter material under the name “Trail Nag.” This contemporary local coverage provides a rare, sourced view of her interests and community work independent of Larry Ellison.
The article identified Quinn as a Belmont resident in 2004. That is a historical detail, not evidence of where she lives today.
Did Adda Quinn help create Oracle?
There is no reliable evidence that Adda Quinn founded, owned or managed Oracle.
Her marriage to Ellison ended in 1974. Software Development Laboratories was formed in 1977 and later became Oracle. Quinn was therefore part of Ellison’s early personal history, but reliable accounts do not describe her as an Oracle co-founder or executive.
This distinction matters. Being married to someone before a company’s creation does not establish a business role in that company.
Did Adda Quinn and Larry Ellison have children?
The reliable sources reviewed do not report children from Quinn and Ellison’s marriage. Standard Ellison biographies identify his known children, David and Megan Ellison, as the children of his later marriage to Barbara Boothe.
That supports the narrower statement that no child from the Quinn–Ellison marriage is publicly documented in the sources reviewed. It would not be responsible to use that fact to make broader claims about Quinn’s entire family life.
Where is Adda Quinn now?
There is no sufficiently reliable, recent public source confirming Quinn’s current residence, occupation or personal circumstances.
The last substantial source used for this article is the 2004 Almanac report. Saying that Quinn currently lives in a particular city, is retired, has remarried, travels frequently or deliberately “avoids the spotlight” would go beyond what these sources establish.
The honest answer is that her present life is not well documented publicly.
Adda Quinn’s net worth
No authoritative source publicly verifies Adda Quinn’s net worth. Online figures attached to her name appear to be estimates without disclosed financial records.
Larry Ellison’s wealth does not provide a valid basis for calculating Quinn’s finances. Their divorce occurred in 1974, before Oracle’s founding, and the reviewed sources do not disclose the financial terms of that divorce. Any precise net-worth claim should therefore be treated as speculation.
Why her verified story matters
Adda Quinn’s public record is limited, but it is not empty. Reliable material establishes two distinct parts of her story: a seven-year marriage during Larry Ellison’s pre-Oracle years and later work connected to environmental research and community advocacy.
The second part deserves attention because it is supported by EPRI’s own publications and contemporary local journalism. It presents Quinn as more than a footnote in a billionaire’s biography, without inventing private details to make the story appear fuller than the evidence allows.
Frequently asked questions
Who is Adda Quinn?
Adda Quinn is best known as Larry Ellison’s first wife. They were married from 1967 until 1974. EPRI records also document her work as a project manager and contributor to environmental research.
Is Adda Quinn Sharon Stone’s son?
No. Sharon Stone’s youngest son is Quinn Kelly Stone. Adda Quinn is a woman known from Larry Ellison’s early biography and EPRI records.
When did Adda Quinn marry Larry Ellison?
Reliable biographies place their marriage in 1967. They divorced in 1974.
Did Adda Quinn work for Oracle?
No reliable source reviewed for this article identifies her as an Oracle employee, founder or owner. Her marriage to Ellison ended three years before the 1977 formation of the company that became Oracle.
What did Adda Quinn do at EPRI?
EPRI materials identify her as a project manager in its Environment Division and credit her on work related to soil contamination and environmental research.
What is Adda Quinn’s age?
Her exact birth date and age are not reliably established in the sources reviewed.
What is Adda Quinn’s age?
Her net worth is not publicly verified. Precise figures published without financial evidence should be treated as speculation.
Where is Adda Quinn today?
No reliable recent source confirms her present residence, occupation or personal circumstances. A 2004 local report identified her as a Belmont resident, but that should not be presented as current information.
Sources and verification
This article was checked against the following sources:
- Encyclopedia.com — Larry Ellison biography: marriage dates, meeting in Berkeley and early household history.
- Biography.com — Larry Ellison: independent confirmation of the marriage timeline and Ellison’s later company history.
- Electric Power Research Institute — Chemical Source Attribution at Former MGP Sites: primary documentation connecting Quinn to EPRI-sponsored environmental research.
- EPRI Journal, December 1994: primary EPRI credit for Quinn’s environmental work.
- The Almanac — “Mounted Patrol names horseperson of the year”: contemporary reporting about Quinn’s environmental and equestrian advocacy.
- People — Sharon Stone’s three children: confirmation that Sharon Stone’s youngest son is Quinn Kelly Stone.
- EBSCO Research Starters — Larry Ellison: independent confirmation of the 1967–1974 marriage.
If you find a reliable primary source that materially changes this account, please contact Kentfaith.de so the article can be reviewed and corrected.
Rob Kent is the editorial pen name used by the owner and editor of Kentfaith.de. He manages topic selection, research, fact-checking, editing and publication across the website. His practical experience includes search engine optimization, website management and online content publishing. Articles published under this name are reviewed for names, dates, relationships and current information, with important factual claims supported by reputable sources.
