| | | | |
| James Dirom R.N. | Explanation |
| Youngest son of Lieutenant-General Dirom |
| Son of General Alexander Dirom (1757-1830) |
| |
| Date (from) | (Date to) | Personal |
| 15 July 1815 | | Born |
| 10 October 1856 | | Married, firstly, Jane Catherine (died 10 March 1858), only daughter of Alexander Pearson, in Edinburgh |
| 9 January 1874 | | Married, secondly, Isabella Anna Samuells (died 7th December 1928), in Edinburgh |
| 8 August 1878 | | Died (Dunfries) |
| |
| Date | Rank |
| 21 March 1829 | Entered Navy |
| 15 March 1841 | Lieutenant |
| 6 February 1852 | Commander |
| 10 May 1856 | Captain |
| 11 June 1874 | Retired Rear-Admiral |
| |
| Date from | Date to | Service |
| 16 March 1841 | 22 October 1841 | Lieutenant in Iris, commanded by Hugh Nurse, west coast of Africa |
| 22 October 1841 | 7 September 1842 | Lieutenant in Persian, commanded by Thomas Rodney Eden, west coast of Africa |
| 7 September 1842 | 15 August 1843 | Lieutenant in Iris, commanded by George Rodney Mundy, west coast of Africa |
| 9 November 1843 | | Lieutenant in Albion, commanded by Nicholas Lockyer, Devonport, then Lisbon, then Channel squadron (until Lockyer died), (also 1844 experimental squadron and 1845 experimental squadron) |
| 1 June 1850 | 2 July 1852 | Lieutenant in Albion, commanded by William James Hope Johnstone, Mediterranean |
| 2 July 1852 | | Commander (2ic) in Maeander, commanded by Charles Talbot, Cape of Good Hope |
| 30 May 1854 | | Commander (2ic) in Algiers, commanded by Charles Talbot, Mediterranean |