Mr Cayley died in July 1981 of chronic bronchitis. At a subsequent inquest he was recorded as having been ‘killed by the King’s enemies’. ‘Let this be a warning,’ added the Coroner, ‘to anyone who plans using gas or bacterial warfare. This man suffered for more than sixty years as the result of First World War gassing.’
The main American germ warfare factory, at Vigo in Indiana, would – at peak production – have been capable of producing twelve times this amount; 100 tons of bacteria per month.
Taken from a ‘Summary Report on B W Investigations’ submitted to the Chief of the US Chemical Corps in Washington on 12 December 1947. Released in 1981 under the Freedom of Information Act.