| | | | |
| Geoffrey Thomas Phipps Hornby R.N. | Explanation |
| Second son of Admiral Sir Phipps Hornby (1785-1867) |
| |
| Date (from) | (Date to) | Personal |
| 20 February 1825 | | Born (Winwick, Lancashire) |
| 1853 | | Married Emily Frances, daughter of the Rev. John Coles of Ditcham Park, Hampshire, and sister of Captain Cowper-Coles |
| 12 August 1878 | | K.C.B. (Knight Commander of the Bath) |
| 19 December 1885 | | G.C.B. (Knight Grand Cross of the Bath) |
| 18 January 1886 | | First and principal naval aide-de-camp to Queen Victoria |
| 1889 | 1890 | Aide-de-camp to Kaiser Wilhelm II during his visits to Britain |
| 3 March 1895 | | Died (Little Green, Lordington, Sussex) |
| |
| Date | Rank |
| March 1837 | Entered Navy |
| 15 June 1844 | Lieutenant |
| 12 January 1850 | Commander |
| 18 December 1852 | Captain |
| 1 January 1869 | Rear-Admiral |
| 1 January 1875 | Vice-Admiral |
| 15 June 1879 | Admiral |
| 1 May 1888 | Admiral of the Fleet |
| 20 February 1895 | Retired Admiral of the Fl |
| |
| Date from | Date to | Service |
| 15 June 1844 | 1847 | Lieutenant in Cleopatra, commanded by Christopher Wyvill, east coast of Africa |
| 6 September 1847 | | Lieutenant in Asia, commanded by Robert Fanshawe Stopford, flagship of Rear-Admiral Phipps Hornby (his father), Pacific (as flag lieutenant) |
| 18 February 1850 | | Commander (2ic) in Asia, commanded by Robert Fanshawe Stopford, flagship of Rear-Admiral Phipps Hornby, Pacific |
| 18 August 1858 | August 1860 | Captain in Tribune (until paying off at Portsmouth), Pacific (where he diplomatically helped resolve the dispute - "Pig War" - with the United States over San Juan Island, off Vancover) |
| 11 February 1861 | 17 December 1862 | Captain in Neptune (until paying off at Portsmouth), Mediterranean |
| 14 May 1863 | September 1865 | Captain in Edgar, flagship of Rear-Admiral Sidney Colpoys Dacres, Commander-in-chief, Channel squadron |
| September 1865 | 1867 | Commodore, west coast of Africa (flag in Bristol) |
| 8 June 1869 | 1871 | Commander-in-chief, Flying squadron (flag in Liverpool) |
| 2 September 1871 | 1 October 1874 | Commander-in-chief, Channel squadron (flag in Minotaur) |
| 29 December 1874 | 11 January 1877 | Commissioner of the Admiralty (2nd naval lord) |
| 15 January 1877 | 5 February 1880 | Commander-in-chief, Mediterranean (flag in Alexandra) |
| 1881 | | President of the Royal Naval College, Portsmouth |
| 28 November 1882 | 28 November 1885 | Commander-in-chief, Portsmouth |
| 1885 | | Commander-in-chief, Baltic fleet assembled during the Panjdeh crisis (precipitated by Russian encroachment into Central Asia) |
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