Although William Baillieu was not the founder of the Baillieu dynasty in Australia – that honour belonged to his father and mother, who produced sixteen children after he jumped ship and settled in Queenscliff – it was through him that the family name became a dominant one among the Melbourne Establishment. Six of the sixteen Baillieu siblings were involved in what Peter Yule describes as Australia’s greatest business empire, centred on the Collins House group. William Baillieu was its founder, builder, and leader.