Background
He was a son of Henry Frederick Tiarks (London, 23 December 1832 - Foxbury, Chislehurst, 18 October 1911), a banker, and wife (London, 11 September 1862) Agnes Morris (Oxford, July/September 1840 - 1923), paternal grandson of Johann Gerhard Tiarks (Jever, 25 May 1798 - Tottenham, 8 March 1858), Chaplain of the Duchess of Kent, and wife (London, 20 October 1825) Emily Phipps (London, 26 May 1798 - London, 6 March 1841), daughter of Josiah Phipps, and great-grandson of Johann Gerhard Tiarks and wife Christine Dorothea Ehrentraut.
