Wikipedia - http://en.wikipedia.org/wiki/John_C._Bogle English He founded Vanguard Funds. Jack Bogle Jack Bogle en:John C. Bogle Jack Bogle John Bogle John Bogle John Bogle Jack Bogle He founded Vanguard Funds. en:John C. Bogle John C. Bogle John Bogle Jack Bogle Jack Bogle Jack Bogle Wikipedia - http://en.wikipedia.org/wiki/John_C._Bogle Jack Bogle Jack Bogle founding ideas Jack Bogle Jack Bogle John C. Bogle Jack Bogle thinks Wikipedia Jack Bogle John Bogle founder and retired CEO of the Vanguard group en:John C. Bogle John Bogle style of investing Jack Bogle Jack Bogle Jack Bogle English Jack Bogle John Bogle John Bogel Vanguard Group founder John Bogle John Bogle Jack Bogle English John Bogle Jack Bogle