John Bogle founded the Vanguard Group and before his death served as a vocal proponent of index investing.
Vanguard founder, father of index investing, Jack Bogle's impact on finance
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Interview: John Bogle
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Jack Bogle: The man who pioneered index investing
The Man in the Arena: Vanguard Founder John C. Bogle and His Lifelong Battle to Serve Investors First - Lydbok - Knut A. Rostad - ISBN 9781705007921 - Storytel
John Bogle's Guide to Investing
John C. Bogle - Wikipedia
Stay the Course: The Story of Vanguard and the Index Revolution by John C. Bogle
Do a lot of people live off dividends? - Quora
In Bogle Family, It's Either Passive or Aggressive - WSJ
7 Priceless Money Lessons from The Founder of Vanguard
John Bogle, Vanguard founder who pioneered low-cost investing, dies at 89 - The Globe and Mail