John MarsTimeline
John Mars

John Mars Timeline

Reviewed by the editorial team · Updated 14 Nov 2026 · Last verified 14 Nov 2026 · 1 min read
Quick answer

John Mars married in 1958, lost his father in 1999 and now owns about a third of Mars, Inc. 12.

Full nameJohn Franklyn Mars
NationalityUnited States
Known forCo-owner of Mars, Inc.

1935: born

John Franklyn Mars is born 1.

  1. 1935 · BORNBorn, a son of Forrest and Audrey Mars
  2. 1958 · MILESTONEMarries Adrienne Bevis
  3. 1999 · MILESTONEHis father Forrest Mars Sr. dies
  4. 2016 · MILESTONEHis brother Forrest Mars Jr. dies
  5. 2026 · MILESTONERanked 35th with $50.4 billion

1958: marriage

He marries Adrienne Bevis 1.

1999: his father dies

Forrest Mars Sr. dies; the family keeps the company 1.

2016: his brother dies

Forrest Mars Jr. dies 1.

2026: top 40

Forbes values him at $50.4 billion on 12 November 4.

Frequently asked questions

In 1999.
Sources✓ Verified 14 Nov 2026
1 Wikipedia, Mars family, 1 Jan 1970, Dates Report a correction