Skip to main content

Primary sourceBook1906

Rockefeller Before a Jury

John A. Zangerle · 1906

A 1906 book by John A. Zangerle examining Rockefeller's legal testimony amid concerns over concentrated wealth.

A contemporary account of Rockefeller's courtroom testimony during the antitrust controversy surrounding Standard Oil.

Ask John D. Rockefeller about this sourceView the original(opens in new tab)
Rockefeller Before a JuryPDF · 214 pages
John A. Zangerle, Rockefeller Before a Jury, 1906. Internet Archive scan.

About this source

What it is

This is a scanned copy of Rockefeller Before a Jury, written by John A. Zangerle and privately printed in 1906. The book reflects on the political, social, and economic questions raised by the concentration of wealth, using Rockefeller's legal testimony as a focus.

Why it matters

Written during the height of public controversy over Standard Oil's power, this book shows how contemporaries viewed Rockefeller's wealth and legal battles. It is a window into early-20th-century debates about monopoly, fairness, and economic power.

Look closer

  • What concerns does the author raise about concentrated wealth?
  • How might Zangerle's own views have shaped his portrayal of Rockefeller?
  • What does this source tell us about public attitudes toward big business at the time?

This book is part of the curated material that grounds the AI version of John D. Rockefeller on Humy.ai — when students ask about related events, the AI can quote it and cite it.

More John D. Rockefeller sources

Meet the AI John D. Rockefeller →
Title page of 'The History of the Standard Oil Company' by Ida M. Tarbell, Volume One, published by McClure, Phillips & Co., New York, MCMV. Includes a red publisher's emblem with an anchor and the initials McC P & Co.Book

Secondary source

The History of the Standard Oil Company

Ida Tarbell · 1904

Handwritten enrolled manuscript of the Act of July 2, 1890, headed 'Fifty-first Congress of the United States of America; At the First Session' with the title 'An Act to protect trade and commerce against unlawful restraints and monopolies,' and the opening sections written in long-hand script.Document

Primary source

Sherman Anti-Trust Act

2 July 1890

Political cartoon from the magazine Puck titled 'The Bosses of the Senate.' Large caricatured trust figures in top hats and frock coats, labeled with trust names like Steel Beam, Copper, and Standard Oil, fill the gallery above a Senate chamber of seated lawmakers at desks. A sign reads 'This is Senate of the Monopolists, by the Monopolists, for the Monopolists.' Signed by J. Keppler.Painting

Primary source

The Bosses of the Senate

Joseph Keppler · 23 January 1889

Oval black-and-white portrait of a young man with short dark hair, wearing a dark suit jacket, white shirt, and dark bow tie, shown from the chest up against a light background.Photograph

Primary source

John D. Rockefeller at 22

Unknown · c. 1861

Handwritten manuscript page of the Act to Regulate Commerce, headed Forty-Ninth Congress of the United States of America, At the Second Session, with the text of the act in ink below, bordered in red ink, on aged paper.Document

Primary source

Interstate Commerce Act

4 February 1887

Ready when you are

Start chatting with John D. Rockefeller now.

20 messages free · No credit card · Available in 50+ languages.

Trial Humy for freeGet a quote for institutions