Hetty Green: the “Witch of Wall Street” — or simply a misunderstood ascetic?

As a woman who managed to amass hundreds of millions of dollars in the male-dominated world of stock trading, Hetty Green still captures the imagination today. Some depict her as the stingiest millionaire of all time; others as a brilliant, cold-blooded investor who saved entire towns during financial upheavals. Where does the legend end and the biography begin? ⁽¹⁾⁽²⁾

A childhood among ledgers

Hetty—born Henrietta Howland Robinson—grew up in New Bedford, Massachusetts, in a Quaker family of wealthy whalers. A frail mother, a strict father, and her grandparents instilled frugality in her while also initiating her into finance from an early age: at just six she read stock-market news aloud to her father, and by thirteen she was keeping the family’s books. ⁽¹⁾⁽²⁾

First steps in the market: discipline over display

With the money entrusted to her after relatives died, she invested conservatively—in bonds, railroad stocks, and mortgages. Today we’d call her approach “value investing”: buy what’s cheap and unloved, and sell when everyone else is fighting over it. She summed it up herself: “I buy when things are down and nobody wants them; I sell when they’re up and everybody wants them.” ⁽¹⁾⁽⁴⁾

Marriage, money, and an iron boundary

In 1867 she married businessman Edward Green. Even before the wedding, he signed a strict agreement: he would have no claim on Hetty’s money. The marriage fell apart after years—mainly because of his lax attitude to spending; Hetty refused to pay off his debts. She continued to earn money at her own pace, with a sober appetite for risk. ⁽²⁾⁽⁶⁾

The “cash is king” strategy

Green held a high share of cash over the long term so she could buy and lend when the market panicked. Thanks to that, during crises she was more a lender of last resort than a speculator. ⁽⁴⁾

The myth of stinginess vs. thrift as a system

Stories of a single black dress, unwashed hems, and no heating became legend. Many were fueled by the tabloids of the day—the contrast between her understated life and the extravagance of the Gilded Age was irresistible. Historians add, however, that her frugality was tied both to her faith and to investment discipline; and that she quietly sent a substantial share of her giving to hospitals, universities, and churches. ⁽³⁾⁽⁵⁾

“The case of her son’s leg”: what’s documented

The harshest legend claims her penny-pinching cost her son Ned a limb. The evidence is mixed: yes, as a young man he lost a leg after complications and an amputation, but regional encyclopedias and later studies note that the family searched for solutions for years and paid specialists—the story of pure “stinginess” doesn’t fit the full picture. ⁽⁷⁾⁽⁶⁾

When a millionaire lends to a city

In the fall of 1907, American banks spiraled into panic. New York City was running out of cash, with payroll dates approaching. Hetty Green—with a large cash reserve—lent the city about $1.1 million in exchange for short-term bonds, helping it get through the worst days of the crisis. She was one of the few women at the table in talks with J. P. Morgan and other magnates. ^(1)(8)(9)

A quiet benefactor

Although she cultivated a reputation as an incorruptible negotiator, she handled philanthropy without cameras or reporters. In her later years she invested more in dependable returns—mortgages and bonds—and maintained her image as a tough but fair lender. ⁽¹⁾⁽²⁾

Final years and death

Her health declined, but she worked almost to the very end. She died on July 3, 1916, at the age of 81. Estimates of her fortune ranged from roughly $100 million to $200 million (in contemporary dollars), inherited by her two children—Edward and Sylvia. Guinness later listed her as the “greatest miser,” though modern accounts balance that label with an emphasis on her investing mastery. ^(1)(2)(6)

Ned Green: bon vivant, collector, and owner of the “nickel of the century”

Hetty’s son Edward Howland Robinson “Ned” Green managed the fortune he inherited from his mother, but with a style all his own: he became a well-known patron of technology and an enormous collector of stamps and coins. In the 1930s he owned all five extraordinarily rare 1913 Liberty Head Nickels—legends of American numismatics, each worth millions of dollars today. ^(10)(11)

Sylvia and the Astors: a marriage with rules

Daughter Harriet Sylvia Ann Howland Green married Matthew Astor Wilks, a descendant of the Astor dynasty. The wedding was preceded by a strict prenuptial agreement and a thorough separation of property—very much in the spirit of Hetty’s philosophy. After her brother’s death, she became the steward of the family wealth and later bequeathed substantial sums to charity. ⁽¹²⁾

The lawsuit that brought mathematics into the courtroom

A lesser-known but fascinating story: Robinson v. Mandell (1868), in which Hetty challenged the will of her aunt Sylvia Howland. The case went down in history because experts—including mathematician Benjamin Peirce—used statistics to assess the authenticity of a signature. The court ultimately ruled against Hetty, but the affair is often cited as one of the earliest examples of forensic mathematics in American courts. ^(13)(14)

Why her story still “works”

Hetty Green didn’t fit the script of her era: she rejected status consumption, didn’t advertise herself, and refused to play the social games of New York high society. Instead, she recycled every dollar, waited patiently for opportunity, and lent when others were afraid. That’s why the double label sticks: to critics, a “witch”; to analysts, a pioneer of discipline and value thinking. ⁽³⁾⁽⁴⁾

Watch more on the topic (video)

Short and longer takes on Hetty Green’s story:

A lecture by author Charles Slack for the Fairhaven Historical Society (longer video):

“The Richest Woman in American History | Hetty Green” (overview format):

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Sources

1. Library of Congress – Hetty Green, the “Witch of Wall Street” – https://guides.loc.gov/this-month-in-business-history/november/hetty-green-born
2. Encyclopaedia Britannica – Hetty Green – https://www.britannica.com/money/Hetty-Green
3. Smithsonian Magazine – The Peculiar Story of the Witch of Wall Street – https://www.smithsonianmag.com/smart-news/peculiar-story-hetty-green-aka-witch-wall-street-180967258/
4. Investopedia – Who Was Hetty Green? – https://www.investopedia.com/hetty-green-5214747
5. National Park Service – Hetty Green (New Bedford) – https://www.nps.gov/nebe/learn/historyculture/hettygreen.htm
6. Wikipedia – Hetty Green (summary with source links) – https://en.wikipedia.org/wiki/Hetty_Green
7. Texas State Historical Association – Edward H. R. Green – https://www.tshaonline.org/handbook/entries/green-edward-howland-robinson
8. Fortune – How the richest woman… helped bail out New York City (1907) – https://fortune.com/article/how-richest-woman-world-mocked-miser-helped-bail-out-new-york-city-panic-1907/
9. CAIA Association Blog – Queen of Wall Street: Hetty Green – https://caia.org/blog/2023/03/08/queen-wall-street-hetty-green-americas-first-value-investor
10. Wikipedia – 1913 Liberty Head Nickel (re: Ned’s collection) – https://en.wikipedia.org/wiki/1913_Liberty_Head_nickel
11. Stack’s Bowers – 1913 Liberty Head Nickel (overview and provenance) – https://stacksbowers.com/coin-resource-center/coin/1913-liberty-head-nickel/
12. Greenwich Historical Society – Sylvia Wilks: Heiress, Recluse & Philanthropist – https://greenwichhistory.org/sylvia-wilks-greenwich-heiress-recluse-philanthropist/
13. Federal Judicial Center – Robinson v. Mandell (Howland Will Case) – https://www.fjc.gov/history/exhibits/circuit-court-opinions/Robinson-v-Mandell
14. Official record of the decision – Robinson v. Mandell (PDF) – https://law.resource.org/pub/us/case/reporter/F.Cas/0020.f.cas/0020.f.cas.1027.3.pdf
15. YouTube – Hetty Green’s Legacy (Charles Slack, Fairhaven Historical Society) – https://www.youtube.com/watch?v=CY07NfYF41Y
16. YouTube – The Richest Woman in American History | Hetty Green – https://www.youtube.com/watch?v=dAR2KG-QLVE