| | | | |
| Henry Prescott R.N. | Explanation |
| Son of Admiral Isaac Prescott |
| |
| Date (from) | (Date to) | Personal |
| 4 May 1783 | | Born |
| 1815 | | C.B. (Companion of the Bath). |
| 5 February 1856 | | K.C.B. (Knight Commander of the Bath). |
| 2 June 1869 | | G.C.B. (Knight Grand Cross of the Bath) |
| 18 November 1874 | | Died. |
| |
| Date | Rank |
| 16 February 1796 | Entered Navy |
| 28 April 1802 | Lieutenant |
| 4 February 1808 | Commander |
| 25 July 1810 | Captain |
| 24 April 1847 | Rear-Admiral |
| 15 April 1854 | Vice-Admiral |
| 2 May 1860 | Admiral |
| 9 June 1860 | Retired Admiral |
| |
| Date from | Date to | Service |
| 22 December 1847 | | Commissioner of the Admiralty (Second Naval Lord) |
| 15 December 1847 | 31 September 1852 | Superintendant of HM Dockyard, Portsmouth |