CACrown ArchivesThe cinema collection
Menu
Research dossier · People & Ideas

Othmar Ammann

Swiss-American structural engineer (1879-1965)

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 3, 2026
Entity authorityQ115783 ↗
Source-derived summary

Othmar Hermann Ammann (March 26, 1879 – September 22, 1965) was a Swiss-American civil engineer whose bridge designs include the George Washington Bridge, Verrazzano–Narrows Bridge, and Bayonne Bridge. He also directed the planning and construction of the Lincoln Tunnel.

Biography

Othmar Ammann was born near Schaffhausen, Switzerland, in 1879. His father was a manufacturer and his mother was a hat maker. He received his engineering education at the Polytechnikum in Zürich, Switzerland. He studied with Swiss engineer Wilhelm Ritter. In 1904, he emigrated to the United States, spending much of his career working in New York City. He became a naturalized citizen in 1924.

In 1905 he briefly returned to Switzerland to marry Lilly Selma Wehrli. Together they had three children – Werner, George, and Margot – before she died in 1933.

Editorial summary

This brief starts where responsible research should: with the source description of “Othmar Ammann” as swiss-American structural engineer (1879-1965). Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA useful biographical orientation record, particularly for establishing names, roles and a first chronology. The current lead gives the account dated anchors—1879, 1965, 1904, 1924—that can be checked directly. The linked authority record independently contributes the date 1879-03-26. The account is most persuasive where Othmar, Ammann and Swiss-American can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the people & ideas register because the source frames it as swiss-American structural engineer (1879-1965). Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

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 Sep 3, 2026. The linked authority identifier is Q115783. VIAF identifies the subject as 62342169. The Library of Congress control number is n80160384. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1879, 1965, 1904 and 1924.

Critical limits

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.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Othmar Ammann”, its source revision and the description used here.
  2. Expand the search: follow Othmar Ammann primary sources, Othmar Ammann archive and Othmar research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Othmar Ammann”?
  2. Which claims depend on a single source or contested interpretation?
  3. Which primary records establish identity, chronology and institutional ties?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Othmar Ammann” 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.