Stanley Aubrey Jenkins was born in Cardiff on 3 April 1914, the son of Stanley Eugene Jenkins, chief clerk to a ship repairing firm, and Gladys Eliza, nee Bowers. He was educated at Cardiff High School before entering the University of Wales for his pre-clinical studies and graduating BSc in 1933 as

Geoffrey Hallett was born at Pyrford, Surrey, on 27 September 1911. His father, Norman Hallett, owned the Wings fleet of cargo ships which regularly travelled between Cardiff and South America. His mother was Annie née Bashford. Geoffrey was educated at Stubbington Prep School and Wellington. He the