The FBI’s first big case: 24 murders of Osage Indians in the Oklahoma oil fields

Mal Warwick
4 min readMay 23, 2017

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Some of these Osage women (shown in 1904) were among the scores murdered in the 1920s by neighbors who coveted the wealth they were gaining from oil discovered on their lands.

When Christopher Columbus arrived in the New World, an estimated 50 million people lived in the Hemisphere. Somewhere between seven and 18 million of them inhabited North America. By 1890, the population of indigenous people in the United States had been reduced to 248,000. Countless millions had died, primarily as the result of epidemic disease carried by European, and later American, settlers. By the 20th Century, hundreds of native communities eked out a minimal existence in and near the reservations where they had been forced to move.

“The wealthiest people per capita in the world”

In most respects, the Osage Nation was typical of the more than 600 North American Indian “tribes.” Once numbering tens or hundreds of thousands, the Osage were masters of a vast territory spanning what are now the states of Missouri, Arkansas, and Oklahoma. Recurrent smallpox epidemics and waves of settlers dramatically reduced their numbers and forced them from the first reservation they were allocated in Kansas early in the 19th Century. Following a treaty in 1870, the survivors were forced to move into a new reservation in north-central Oklahoma that is their current home. They purchased the land, deliberately selecting an arid, hilly area unsuitable for farming in hopes that white men wouldn’t take it away from them.

In 1907, a brilliant chief negotiated an agreement with the U.S. government allowing the Osage to retain all mineral rights, even if the land itself were sold. Soon afterward, oil was discovered there. The reservation sat on “some of the largest oil deposits in the United States.” By the 1920s, some three thousand Osage — a third of the number 70 years earlier — had become fabulously wealthy. “In 1923 alone, the tribe took in more than $30 million [in royalties], the equivalent today of more than $400 million. The Osage were considered the wealthiest people per capita in the world.”

Corruption, sponsored by the federal government

Killers of the Flower Moon by New Yorker staff writer David Grann reveals the consequences of this new wealth. Many Osage spent their money ostentatiously, attracting thieves, con men, and profiteers to the reservation; some white men married Osage women in what seemed an obvious ploy to gain control of their wealth. In 1921, a new federal law was passed requiring “any Osage of half or more Indian ancestry to be appointed a guardian until proving ‘competency.’ Minors with less than half Osage ancestry were required to have guardians appointed, even if their parents were living.” Prominent local white men such as lawyers, bankers, businessmen, and ranchers were appointed as guardians. The scene was set for corruption. “One government study estimated that before 1925 guardians had pilfered at least $8 million directly from the restricted accounts of their Osage wards.” But even that massive thievery didn’t satisfy the local powers-that-be.

Two dozen murders in four years, none of them solved

In 1921, two Osage unrelated to each other were found murdered, and more than 20 others followed by 1925. Investigations by the local sheriff were bungled badly. “Virtually no evidence had been preserved from the various crime scenes.” Private eyes brought in to investigate failed to discover the killers. A local lawyer obtained documentary evidence pointing to at least one of the murderers, but both he and the man who had given him the documents were themselves murdered; the documents disappeared.

Enter the FBI

Pleas from the Osage council to Washington for federal intervention finally bore fruit in 1925. The Bureau of Investigation (later the FBI) under its newly appointed director, J. Edgar Hoover, dispatched a team of investigators headed by a former Texas Ranger named Tom White, who proved to be a perfect choice. Incorruptible, dogged, and knowledgeable about the new “scientific” methods of policing, White uncovered a conspiracy led by a “domineering cattleman” named William K. Hale, who was known locally as the “King of the Osage Hills.” Hale and two nephews, both of them married to Osage women, were clearly responsible for at least four murders. White put them on trial — and encountered a “litany of dead witnesses,” crooked doctors and undertakers, witness tampering, manufactured evidence, and a local jury’s reluctance to convict a white man of murdering an Indian. Only in a second trial the following year did he succeed in gaining a conviction for Hale, one of his nephews, and an accomplice.

More murders than ever revealed

In researching the “Osage Reign of Terror” eight decades later, Grann came across claims again and again that the 24 murders that brought in the FBI only hinted at the scope of the killing. Through exhaustive digging in archival records, he turned up evidence that the murders had begun at least three years before 1921 and lasted for six years after 1925. “Scholars and investigators who have since looked into the murders believe that the Osage death toll was in the scores, if not the hundreds.” Grann ends this deeply engrossing and troubling book quoting Cain after he killed Abel: “The blood cries out from the ground.”

Killers of the Flower Moon is David Grann’s second book. The first, a New York Times bestseller, was The Lost City of Z: A Tale of Deadly Obsession in the Amazon, a fascinating book I reviewed here.

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Mal Warwick

Author, book reviewer, serial entrepreneur, board member