| James Grant R.N. | Explanation | ||
| Date (from) | (Date to) | Personal | |
| 8 April 1833 | Born | ||
| Date | Rank | ||
| 11 March 1854 | Mate | ||
| 5 January 1856 | Lieutenant | ||
| 26 June 1866 | Commander | ||
| 27 October 1882 | Retired Captain | ||
| Date from | Date to | Service | |
| 6 March 1869 | 20 March 1872 | Commander in Boscawen, training ship, Portland | |
| 1 November 1873 | 26 October 1882 | , Coast Guard | |
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