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John B. McDonald

American contractor

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 23, 2026
Entity authorityQ67905719 ↗
Source-derived summary

John B. McDonald (November 7, 1844 – March 17, 1911) was an Irish-born contractor who is best known for overseeing construction of New York City's first subway line from 1900 to 1904.

Early life

John B. McDonald was born on November 7, 1844, in Cork, Ireland to Bartholomew McDonald, a contractor and cellar digger. At a young age, he came to New York City and attended public schools. His father became served as a representative in the New York City Board of Aldermen.

Career

From 1900 to 1904, McDonald oversaw the construction of the first New York City Subway line. McDonald won the job with a $35 million bid in 1900, but he did not have the capital necessary to post the surety bonds the city required, so he turned to the banker August Belmont Jr., for financial backing. After that, McDonald effectively worked for the company that Belmont formed, the Interborough Rapid Transit Company, but McDonald was credited with being an extremely able builder. The initial segment from City Hall to Grand Central, across 42nd Street to Times Square, and up Broadway to 145th Street—was completed on schedule on October 27, 1904. It was a remarkable achievement given the complexity and novelty of the project and periodic labor turmoil.

In 1905, McDonald was hired away by a rival transit mogul, Thomas Fortune Ryan, who proposed to build a competing subway line.

Editorial summary

The public source identifies “John B. McDonald” as american contractor. This brief keeps that definition visible, then builds a research path around John, McDonald and American.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1844, 1911, 1900, 1904—that can be checked directly. The linked authority record independently contributes the date 1844-01-01. Its value is orientation rather than verdict, with John, McDonald and American providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “John B. McDonald”, the useful work is to connect “american contractor” to the records capable of establishing context and consequence.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 23, 2026. The linked authority identifier is Q67905719. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1844, 1911, 1900 and 1904.

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Source & attribution

This entry incorporates text from “John B. McDonald” 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.