Pauline MacMillan Keinath

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Pauline MacMillan Keinath
Pauline MacMillan

(1934-07-31) July 31, 1934 (age 87)
Hennepin County, Minnesota, US
Known for9% stake in Cargill
RelativesWilliam Wallace Cargill (great-grandfather)
Cargill MacMillan Jr. (brother)
Whitney MacMillan (brother)

Pauline MacMillan Keinath (born July 31, 1934 in Hennepin County, Minnesota) is an American billionaire heiress.

She is a great-granddaughter of William Wallace Cargill, the founder of Cargill, the largest private company in the US. As of July 2020, she has a net wealth of $5.8 billion from an inherited 9% stake in Cargill.[1]

In 2014, she was the 16th richest woman in the US.[1][2]

She is married, with four children, and lives in St. Louis, Missouri.[1]


  1. ^ a b c d "Forbes profile: Pauline MacMillan Keinath". Forbes. Retrieved 28 September 2020.
  2. ^ "Richest Woman In The United States of America: Top 20 Female Billionaires 2014". Ceoworld. Retrieved 13 November 2014.