Papers relating to the career of John Thomas Allen, railway detective and Assistant Chief of Police, London & North Western Railway

Papers relating to the career of John Thomas Allen, railway detective and Assistant Chief of Police, London & North Western Railway (LNWR), 1887-c1915.1. typescript sheet giving summary of his career; 2. memo to Allen from LNWR Police office at Euston dated 2 September 1910 enclosing copy of letter from Scotland Yard thanking LNWR for help and assistance received in the landing and conveyance to London of Dr Crippen and Ethel Le Neve; 3. 8-page typescript giving detailed account of Allen's career (work done, posts held, significant cases handled) including his work protecting royalty.