Elaine Marshall & family

$30.93B
as of 03/13/26

About Elaine Marshall & family

Elaine Marshall owns an estimated 16% of $125 billion (revenue) conglomerate Koch, Inc. (formerly Koch Industries) with her two sons.

She inherited her stake from husband E. Pierce Marshall (d. 2006), whose father J. Howard Marshall II (d. 1995) was an early partner of founder Fred Koch (d. 1967).

J. Howard II was married to Playboy Playmate Anna Nicole Smith (d. 2007) at the time of his death.

Fred Koch's son Charles is chairman and co-CEO of Koch, Inc. and splits an 84% voting stake with Julia Koch, the widow of his brother David (d. 2019).

Elaine's son Preston Marshall is a former director of the Cato Institute, a libertarian think tank cofounded by Charles Koch.

Her son E. Pierce Marshall, Jr. runs investment firm Élevage Capital Management.

Personal stats

Citizenship

United States of America

Source of wealth

Koch Inc.

Residence

Dallas, Texas

Birth date

07/22/42 (age 83)

Number of children

2

Self-made

inherited

Elaine Marshall & family’s fortune is worth

515K

troy ounces of gold

476K

median U.S. household

309K

median U.S. income

0.619%

U.S. credit card volume

0.124%

GDP of the United States

0.091%

United States debt

Net worth history

Annual ranking

Net worth over time

Real-time ranking

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