Jones was born in Llanelli on 18 January 1900, the son of Frederick and Elizabeth Jones. His father worked in the tinplate industry. He was the brother of the politician Lord Elwyn-Jones.[1]
Idris Jones died in Llandaff on 5 July 1971 and was unmarried.[1]
Rugby union
Jones captained Aberystwyth University Rugby Club (1919–1922) and played for Cambridge University (1923–1925). He played for London Welsh and Llanelli and for the Barbarians invitation team.[1] He made four appearances for Wales in 1924 and 1925, scoring one try,[2] and was captain in the Ireland v Wales match in Belfast on 14 March 1925.[3]
On the nationalisation of the British coal industry in 1946, Jones was invited to set up and lead the scientific service, becoming Director General of Research Development (Coal Processing and Combustion) at the National Coal Board.[4]