Jacqueline Mars

Jacqueline Mars was born on October 10, 1939, in Washington, D.C., the granddaughter of Frank Mars, who invented the Milky Way bar, and the daughter of Forrest Mars Sr., who built the company into a private candy and pet-food empire while keeping it almost entirely out of public view. She attended Miss Hall's School in Massachusetts, competed as an equestrian, and earned an anthropology degree from Bryn Mawr College in 1961, the same year she married David Badger, with whom she had three children before their 1984 divorce. Unlike many heirs to a fortune that size, she did not go into the family business right away; she spent two decades outside it before her father's company pulled her in.

Mars joined Mars Incorporated in 1982 as president of its food product group and stayed active in the company for nearly two decades, through the era that built M&M's, Snickers, and Pedigree into some of the most recognized brands on earth without ever selling a share of stock to the public. She retired from day-to-day management in 2001 but remains a company director; she and her brother John each hold roughly a third of the company outright, the rest held by their late brother Forrest Jr.'s four daughters, a stake Forbes has valued in the tens of billions of dollars. Since retiring she has put much of her time into the Mars Foundation and into causes further from candy entirely, backing the Washington National Opera, the U.S. Equestrian Team, and, in 2026, a ten-million-dollar scholarship gift to Bryn Mawr.

The family's near-total silence about itself is not incidental; it is policy, and it dates to a single 1966 trade-magazine profile that Forrest Mars Sr. felt had misquoted him. From that point until his death in 1999 he refused every further interview and avoided cameras wherever he could, and his children have kept the habit: Jacqueline Mars has given almost no interviews about her own life or the business that built it. In October 2013 she fell asleep at the wheel and caused a crash, pleading guilty to reckless driving, one of the very few moments the private life of a woman worth tens of billions of dollars became a matter of public record at all.

What history will make of a fortune this size, held this quietly, is still unsettled. Mars has none of the public foundation infrastructure or media presence of a Gates or a Buffett, no memoir, no interview circuit explaining how she sees the money or what she wants it to do after her. The philanthropy that is visible, the opera board seats, the equestrian sponsorships, the occasional university gift, reads less like a legacy being built in public than like a family still deciding, out of sight, what its name is eventually going to mean.

Jacqueline Mars's life against the full span of the corpus — the fading end marks a life still in progress.

• Mars Incorporated food product group company
  Led as group president through the 1980s and 1990s 1982
• The Mars Foundation company
  Philanthropic arm she has directed much of her post-retirement time toward 2001

• October 10, 1939 aged 0 Born in Washington, D.C. Granddaughter of Frank Mars, who invented the Milky Way bar.
• 1961 aged ~22 Graduates Bryn Mawr College and marries David Badger
• 1982 aged ~43 Joins Mars Incorporated as president of its food product group
• 1984 aged ~45 Divorces David Badger The couple had three children together.
• 2001 aged ~62 Retires from day-to-day management at Mars Inc. Remains a company director and shareholder.
• October 2013 aged 73 Falls asleep at the wheel and causes a crash Pleaded guilty to reckless driving.
• March 2026 aged 86 Gives $10 million to Bryn Mawr College for undergraduate scholarships

• Alice Walton b. 1949
  Daughter of Sam Walton and art patron who founded the Crystal Bridges Museum of American Art. contemporary heiress-philanthropist
• Warren Buffett b. 1930
  Value investor whose disciplined approach built one of the largest personal fortunes in American history. contemporary in American private wealth
• Joan Kroc 1928–2003
  McDonald's heiress whose bequests funded NPR, the Salvation Army, and peace studies. contemporary heiress-philanthropist
• Margaret Cargill 1920–2006
  Heiress whose anonymous foundation became one of America's largest charitable organizations after her death. contemporary of, in privately held family fortune