Stewart and Cyril Marcus
American gynecologists

Stewart and Cyril Marcus (June 2, 1930 – July 1975) were identical twin gynecologists who practiced together in New York City. They died together in July 1975 at the age of 45.
Biography
Stewart and Cyril Marcus were born on June 2, 1930. They grew up in Bayonne, New Jersey, where they attended Bayonne High School. While there, both ran unsuccessfully for office. Both were selected for the National Honor Society; Stewart won the B'nai B'rith essay contest and was valedictorian, while Cyril was salutatorian.
The brothers attended Syracuse University for their undergraduate degrees and medical school, then interned at Mount Sinai Hospital (Manhattan), staying on in the residency program in gynecology. The chairman of the program, Dr. Alan Frank Guttmacher, did not feel that it was wise that they continue to practice together and refused to recommend them to the same hospital. Stewart went into a program at Stanford University, while Cyril transferred to the New York University Hospital for Joint Diseases.
Begin with the source’s own compact description: “Stewart and Cyril Marcus” is american gynecologists. The dossier treats that line as a proposition to test through Stewart, Cyril and Marcus, not as a finished interpretation.
Why this record matters
The phrase “american gynecologists” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q7615981. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1930 and 1975.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Stewart and Cyril Marcus”, its source revision and the description used here.
- Expand the search: follow Stewart and Cyril Marcus primary sources, Stewart and Cyril Marcus archive and Stewart research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Stewart and Cyril Marcus”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Stewart and Cyril Marcus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.