| | | | |
| James Robert Drummond R.N. | Explanation |
| Second son of Viscount Strathallan |
| |
| Date (from) | (Date to) | Personal |
| 15 September 1812 | | Born |
| 15 September 1812 | | Born |
| 24 May 1873 | | K.C.B. (Knight Commander of the Bath) |
| 23 April 1880 | | G.C.B. (Knight Grand Cross of the Bath) |
| 7 October 1895 | | Died |
| |
| Date | Rank |
| 2 February 1826 | Entered Navy |
| 27 December 1832 | Lieutenant |
| 9 June 1838 | Commander |
| 8 June 1846 | Captain |
| 11 January 1864 | Rear-Admiral |
| 2 June 1870 | Vice-Admiral |
| 22 January 1877 | Admiral |
| 16 September 1877 | Retired Admiral |
| |
| Date from | Date to | Service |
| 18 December 1841 | 1845 | Commander in Scout, Mediterranean |
| 10 June 1852 | | Captain in Retribution, Mediterranean |
| 11 December 1854 | | Captain in Tribune, Mediterranean, and Black Sea during the Russian War |
| 7 July 1855 | | Captain in Albion, Mediterranean |
| 7 March 1856 | | Captain in Victory, flagship of Vice-Admiral George Francis Seymour, Portsmouth |
| 2 December 1856 | | Captain in Maeander, coast guard service |
| 8 March 1858 | 28 January 1859 | Commissioner of the Admiralty (4th Naval Lord) |
| 20 December 1858 | | Commodore in Fisgard, Woolwich |
| 15 June 1861 | 9 May 1866 | Commissioner of the Admiralty (4th Naval Lord) |
| 9 May 1866 | 13 July 1870 | Admiral superintendent of Devonport Dockyard (flag in Indus) |
| 13 January 1874 | 15 January 1877 | Commander-in-chief, Mediterranean (flag in Lord Warden, then Hercules) |