Admiral
Henry Blackett
| Personal Details | |
| Date of Birth | 28 November 1867 |
| Place of Birth | Staines, Surrey |
| Father's Name | J.C. Blackett Esq., Thorpe Lee, Egham, Surrey |
| Wife's Name | Pamela Mary Fish |
| Date of Marriage | 14 July 1906 |
| Place of Marriage | Hannover Square |
| Date Retired | 22 February 1919 |
| Date of Death | 01 December 1952 |
| Place of Burial | |
| Rank History | ||
| Rank | Date attained | Source |
| Naval Cadet | 15 January 1881 | ADM 196-42 Service Record |
| Acting Sub-Lieutenant | 16 May 1887 | ADM 196-42 Service Record |
| Sub-Lieutenant | 16 May 1887 | ADM 196-42 Service Record |
| Lieutenant | 01 October 1890 | ADM 196-42 Service Record |
| Commander | 31 December 1902 | ADM 196-42 Service Record |
| Captain | 31 December 1907 | ADM 196-42 Service Record |
| Rear-Admiral | 21 February 1919 | ADM 196-42 Service Record |
| Vice-Admiral | 01 January 1925 | ADM 196-42 Service Record |
| Admiral | 27 February 1929 | ADM 196-42 Service Record |