Sidney M. Cadwell
American polymer scientist

Sidney Marsh Cadwell (5 March 1893 – 24 June 1986) noted as discoverer of anti-oxidants for rubber. Cadwell published perhaps the first scientific study of the fatigue behavior of rubber.
Cadwell served as Chairman of the Rubber Division of the American Chemical Society in 1935 and was named the 1956 Charles Goodyear Medalist.
PhD University of Chicago 1917 supervised by Julius Stieglitz, Frederick W. Stavely was a classmate
World War I Captain in the Chemical Warfare Service.
1919 joined United States Rubber Company
1966 as director of Institute of Applied Chemistry and Physics at Wayne State University, received the Midgley Award of the ACS Detroit Section
References
External links
Recorded Interview with Dr.
Begin with the source’s own compact description: “Sidney M. Cadwell” is american polymer scientist. The dossier treats that line as a proposition to test through Sidney, Cadwell and American, not as a finished interpretation.
Why this record matters
The phrase “american polymer scientist” 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.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Aug 29, 2026. The linked authority identifier is Q16850234. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1893, 1986, 1935 and 1956.
Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. 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
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
- Establishing names and roles
- Building a first chronology
- Locating cited institutions
Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
- Establish the record: confirm the title “Sidney M. Cadwell”, its source revision and the description used here.
- Expand the search: follow Sidney M. Cadwell primary sources, Sidney M. Cadwell archive and Sidney 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 “Sidney M. Cadwell”?
- Which claims depend on a single source or contested interpretation?
- Which primary records establish identity, chronology and institutional ties?
Search terms from this dossier
This entry incorporates text from “Sidney M. Cadwell” 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.