Military Career Summary
| 18th August 1900 | 2nd Lieutenant -Royal Garrison Artillery |
| 8th May 1902 | Lieutenant. Royal Garrison Artillery |
| 30th December 1915 | Major. Royal Flying Corps. |
| 1st January 1919 | Awarded Companion of Order of St. Michael & St. George |
| 1st August 1919 | Group Captain -Royal Air Force |
| 1st January 1922 | Air Commodore- Royal Air Force |
| August 1924 | Chief Staff Officer. RAF Iraq Command |
| May 1926 | Director of Staff Training –Air Ministry |
| 2nd January 1928 | Awarded Companion of Order of the Bath |
| 1st January 1929 | Air Vice -Marshall |
| 1929 | RAF Transjordan and Palestine |
| 1929-30 | Air Officer Commanding Air Defence of Great Britain |
| 1930-35 | Air Member for Supply & Research |
| 1935-36 | Air Member for Research & Development |
| 1936-40 | Command of RAF Fighter Command |
| 8th October 1940 | Awarded Knight Grand Cross of the Order of the Bath |
| 24th November 1940 | Relinquished Command |