Milroy Aserappa Paul, the eldest son of Samuel Chellar Paul, one time senior surgeon to the Colombo General Hospital, and of Dora Eleanor Paul (née Aserappa) was born in Colombo on 20 January 1900. His mother was the daughter of Dr Simon de Melho Aserappa, MD Edinburgh. Milroy was educated at Ladies

John Henry Milnes Walker was born on 16 March 1902 in Wakefield, the son of John William Walker and his wife Constance Elizabeth, née Holdsworth. His father and grandfather had both been surgeons on the staff of Clayton Hospital and his wife's father had been a physician there. He was educated at Ou

Eric William Riches, the second child and eldest son of William Riches, a schoolmaster, and of Kate Riches (née Rowbotham), was born on 29 July 1897, at Alford, Lincolnshire. He was educated at St Dunstan's, Alford, and Queen Elizabeth Grammar School, Alford, before securing an entrance scholarship