File: 'No 40 GD (COUNTY OF LONDON) COMPANY ATS', 1938-1940. 
File of administrative papers relating to the company, based at Kneller Hall, 12 Sep 1939-17 Feb 1940. Includes daily orders 16 Nov 1939-8 Jan 1940, papers, notes on pay and staffing, timetables, and establishment details. 
Associated with World War Two, Home Front (1939-1945). Thorne handed over command of the unit 21 Feb 1940. 
From a collection of papers associated with Mary Diana Thorne (1910-1983), Women's Royal Army Corps (TA) and Auxiliary Territorial Service, 1938-1952.