| Henry Francis Redhead Yorke R.N. | Explanation |
| |
| Date (from) | (Date to) | Personal |
| 1842 | | Born |
| 1866 | 1872 | Admiralty clerk (and private secretary to Sir Sydney Dacres) |
| March 1880 | 1886 | Assistant private secretary to First Lords of the Admiralty, W.H. Smith, Lord Northbrook and Lord George Hamilton |
| 31 July 1882 | | Married Lilian Harriet (17 Oct 1851 - 11 Apr 1914), daughter of 10th Earl of Wemyss, and widow of Sir Henry Carstairs Pelly, M.P (1844-1877).1) |
| 1897 | | C.B. (Companion of the Bath) |
| 1902 | | K.C.B. (Knight Commander of the Bath) |
| 12 January 1914 | | Died (Iver Heath) |
| According to his obituary in the Times newspaper he resigned in 1865 because of poor health; an undated note in his service record in ADM196/37 however states "? to avoid court martial for misconduct" |
| |
| Date | Rank |
| 18 January 1855 | Entered Navy |
| 1862 | Sub-Lieutenant |
| 8 April 1863 | Lieutenant |
| 11 April 1865 | Retired |
| |
| Date from | Date to | Service |
| 1 February 1860 | 4 October 1861 | Midshipman in Emerald, Channel squadron |
| 4 October 1861 | | Midshipman in Trafalgar, commanded by John Bourmaster Dickson, Channel squadron |
| 8 April 1863 | 27 August 1863 | Additional Lieutenant in Tribune, commanded by Viscount Gilford, Pacific |
| 27 August 1863 | | Lieutenant in Leander, commanded by Thomas Harvey, Pacific |
| 3 August 1864 | 3 August 1864 | Lieutenant in Bacchante, commanded by Donald McLeod Mackenzie, flagship of Rear-Admiral Thomas Maitland, Pacific |
| 1865 | | Temporary Admiralty clerk |
| 1874 | November 1877 | Private secretary to Vernon Lushington, Permanent Secretary of the Admiralty |
| 1 February 1886 | 1905 | Director of Victualing at the Admiralty |