Pauline MacMillan Keinath

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Pauline MacMillan Keinath
Pauline MacMillan

(1934-07-31) July 31, 1934 (age 85)
Hennepin County, Minnesota, US
ResidenceSt Louis, Missouri[1]
Known for9% stake in Cargill
Net worth$7.2 billion (April 2019)[1]
Spouse(s)Mr Keinath
RelativesWilliam W. Cargill (great-grandfather)
Cargill MacMillan Jr. (brother)
Whitney MacMillan (brother)

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

Pauline MacMillan was born on July 31, 1934 in Hennepin County, Minnesota.

She is a great-granddaughter of William W. Cargill, the founder of Cargill, the largest private company in the US. As of December 2016, she has a net wealth of $6.8 billion from an inherited 9% stake in Cargill.[1][2]

In 2014, she was the 16th richest woman in the US.[1][3]


  1. ^ a b c d "Pauline MacMillan Keinath". Forbes. Retrieved 13 November 2014.
  2. ^ "Pauline MacMillan Keinath". Forbes. Forbes. Retrieved 30 December 2016.
  3. ^ "Richest Woman In The United States of America: Top 20 Female Billionaires 2014". Ceoworld. Retrieved 13 November 2014.