Thomas was the son of Robert Thomas, was born in Fleet Street, London and emigrated to South Australia with his father in 1836, and from that time until the day of his death Thomas was intimately associated with the fortunes of the South Australian Register, for the last twenty-five years of his life as one of the proprietors.
William Shakespeare | William Laud | Thomas Jefferson | William Blake | William | Thomas Edison | William III of England | William Morris | William McKinley | William Howard Taft | William Ewart Gladstone | William the Conqueror | William S. Burroughs | Thomas | William Shatner | William Faulkner | William Randolph Hearst | Thomas Hardy | William Wordsworth | William Tecumseh Sherman | Thomas Mann | William Hogarth | Thomas Aquinas | Prince William, Duke of Cambridge | Clarence Thomas | Thomas Gainsborough | William Penn | Dylan Thomas | Thomas Pynchon | William Jennings Bryan |
On 1 January 1850, it became a daily publication, and three years later the paper was bought back by Thomas's son William Kyffin Thomas as part of South Australia's first media syndicate with Anthony Forster, Edward William Andrews and Joseph Fisher.