|Description||Williams had been a close wartime colleague of Blackett, who was largely responsible for his appointment to R.A.E. Farnborough, to Operational Research, Coastal Command, and to the Admiralty where he was Assistant Director, Operational Research.|
Blackett wrote an obituary of Williams for 'Nature' and the Biographical Memoir for the Royal Society. R.S. 55
The folders include correspondence with family and colleagues re material for the Memoir, often containing material of personal interest not used in the publication, and fuller notes of Williams's wartime contribution than was available at the time.