steered the UK Atomic Energy Authority through one of the most challenging periods. With the Government reducing its funding of nuclear research, Allen ensured the authority’s survival in the early 1980s by introducing commercial discipline into its nuclear work and diversification programme. Arnold Millman Allen was born in Hackney, London, in 1924. He was educated at Hackney Downs Secondary School and read history at Peterhouse College, Cambridge. He joined the Treasury in 1945, becoming private secretary to the Financial Secretary in 1951 and a principal two years later. In 1956 he was appointed private secretary to the chairman of the UKAEA, Lord Plowden. After returning briefly to the Treasury, he went back to the UKAEA in 1959 as director of personnel and administration in the development and engineering group. (Times Obituary)