Major-General
* 21st of August 1900
† 15th of December 1980
(Black Watch)
Nickname: Viscount Arbuthnott
| 1938-12-16 | Local Lieutenant-Colonel |
| 1940-06-18 | Acting Lieutenant-Colonel |
| 1940-09-18 | Temporary Lieutenant-Colonel |
| 1941-08-04 | Acting Colonel |
| 1942-02-04 | War Substantive Lieutenant-Colonel |
| 1942-02-04 | Temporary Colonel |
| 1942-06-19 | Acting Brigadier |
| 1942-12-19 | Temporary Brigadier |
| 1944-10-01 | Lieutenant-Colonel |
| 1944-10-10 | Acting Major-General |
| 1945-01-02 | Colonel |
| 1945-10-10 | Temporary Major-General |
| 1946-12-22 | Major-General (Dated back to 1945-03-27) |
| 1938-12-16 | – | 1940-06-17 | Instructor at Staff College Camberley |
| 1941-08-04 | – | 1942-06-18 | Colonel General Staff, Scottish Command |
| 1942-06-19 | – | 1943-05-09 | Brigadier General Staff, Scottish Command |
| 1943-05-10 | – | 1943-10-07 | Commanding Officer 198th Infantry Brigade |
| 1943-09-29 | – | 1944-10-10 | Commanding Officer 11th Infantry Brigade [Italy] |
| 1944-07-09 | – | 1944-07-30 | Acting General Officer Commanding 78th Infantry Division [Italy] |
| 1944-08-01 | – | 1944-08-21 | Acting General Officer Commanding 78th Infantry Division [North Africa] |
| 1944-10-10 | – | 1944-11-17 | Acting General Officer Commanding 78th Infantry Division [Italy] |
| 1944-11-17 | – | 1946-XX-XX | General Officer Commanding 78th Infantry Division [Italy] |
| 1946-07-01 | – | 1947-XX-XX | Head of the British Military Mission to Egypt |
| 1948-01-24 | – | 1949-05-XX | Chief of Staff, Scottish Command |
| 1949-05-XX | – | 1952-11-01 | District Officer Commanding Highland District |
| 1949-05-XX | – | 1952-11-01 | General Officer Commanding 51st Infantry Division |
| 1952-11-29 | Retired | ||
| 1960-03-31 | – | 1964-06-01 | Colonel, Black Watch |