The Training and Staff Duties Division,[1] later known as the Tactical and Staff Duties Division, was a directorate of the Admiralty Naval Staff of the Royal Navy responsible for the tactical use of naval weapons and the training of naval personnel in relation to operational requirements from 1917 to 1958. 
  History
 The Training and Staff Duties Division was established as part of the reorganisation of the Admiralty in 1917 under the command of  Rear-Admiral James C. Ley. The DTSD, or Director of Training and Staff Duties, was a naval officer (usually a captain) employed within the Admiralty and was mainly responsible for the administration of officers' education. He was expected to comment on all questions of officer education and suggest answers to problems, but was rarely required to sit on committees and did not have an active role in formatting syllabi.[2] In June 1945 the directorate was renamed Tactical and Staff Duties Division and existed until 1958. 
 Office of the Directors of Division
 Directors Training and Staff Duties Division
 - Post holders included:[3][4][5][6]
Directors Tactical and Staff Duties Division
 - Post Holders included:[8]
- Captain Charles L. Robertson: June 1945-May 1947
- Captain Royer M. Dick: May 1947-November 1948  (later rear-admiral)  [9]
- Captain Richard G. Onslow: November 1948-April 1951
- Captain W.Kaye Edden: April 1951-October 1953
- Captain Walter A. Adair: October 1953-November 1955
- Captain Guy W. Hawkins: November 1955-January 1958
Deputy Directors of the Training and Staff Duties Division
 - Post holders included:[10]
- Captain Guy P. Bigg-Wither, 15 January 1919 – 1 February 1919
- Captain Edward A. Astley-Rushton,  1 February 1919  – 8 February 1921[24]
- Captain Noel F. Laurence, 1 July 1926  – 1 July 1927
- Captain Isham W. Gibson, 1 July 1927 – 10 April 1928
- Captain Hubert Ardill, 17 March 1930  – 7 December 1931
- Captain Geoffrey S. Arbuthnot, 14 March 1932  – 18 June 1933
- Captain Frederick A. Buckley, 16 October 1933   – 14 March 1934
Timeline
     - ^ Archives, The National. "Naval Staff Divisions - Reorganisation: Part of Instructions". discovery.nationalarchives.gov.uk. The National Archives. UK, ADM 116/1803, 1917-1921. Retrieved 18 December 2017. 
- ^ Romans, Elinor Frances (March 2012). "Selection and Early Career Education of Executive Officers in the Royal Navy c1902-1939" (PDF). ore.exeter.ac.uk. Exeter, England: University of Exeter. p. 5. Retrieved 23 August 2018. 
- ^ Mackie, Colin. "Royal Navy Senior Appointments from 1865". gulabin.com. Colin Mackie, p31. Retrieved 4 January 2018. 
- ^ Harley, Simon; Lovell, Tony. "Bernard William Murray Fairbairn - The Dreadnought Project". www.dreadnoughtproject.org. Harley and Lovell, 22 August 2017. Retrieved 4 January 2018. 
- ^ Archives, The National. "Gibson, Isham Worsley (1862-1950) Rear Admiral". discovery.nationalarchives.gov.uk. National Archives, 1914-16. Retrieved 4 January 2018. 
- ^ Archives, The National. "Snagge, Arthur Lionel Date of Birth: 04 May 1878 Rank: Vice Admiral". discovery.nationalarchives.gov.uk. National Archives UK, 15 July 1892. Retrieved 4 January 2018. 
- ^ Archives, The National. "Ritchie, James Stuart Maclaren Date of Birth: 12 March 1884 Rank: Rear-Admiral". discovery.nationalarchives.gov.uk. National Archives, 15 May 1899, ADM 196/91/150. Retrieved 4 January 2018. 
- ^ Mackie, Colin. "Royal Navy Senior Appointments from 1865". gulabin.com. Colin Mackie, p31. Retrieved 4 January 2018. 
- ^ "Dick, Royer Mylius, Rear-Admiral, 1897-1991 - National Maritime Museum". collections.rmg.co.uk. Royal Museum Greenwich, UK, 1914-1986. Retrieved 4 January 2018. 
- ^ Mackie, Colin. "Royal Navy Senior Appointments from 1865". gulabin.com. Colin Mackie, p37. Retrieved 18 December 2017. 
  References
 - Archives, The National. (1917-1921) "Naval Staff Divisions - Reorganisation: Part of Instructions". discovery.nationalarchives.gov.uk. The National Archives. UK, ADM 116/1803.
- Black, Nicholas (2009). The British Naval Staff in the First World War. Boydell Press. ISBN 9781843834427.
- Mackie, Colin. (2011). "Royal Navy Senior Appointments from 1865". http://www.gulabin.com.
Further reading
 - Rodger, N.A.M. (1979). The Admiralty: Offices of State. Lavenham, United Kingdom: Terrance Dalton. ISBN 0900963948.
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