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| Benjamin Spencer Pickard R.N. | Explanation |
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| Date (from) | (Date to) | Personal |
| No personal data. |
| |
| Date | Rank |
| 10 August 1843 | Lieutenant |
| 2 March 1858 | Commander |
| 12 December 1863 | Captain |
| 7 March 1875 | Retired Captain |
| 2 March 1879 | Retired Rear-Admiral |
| 1 July 1885 | Retired Vice-Admiral |
| |
| Date from | Date to | Service |
| 9 May 1840 | 20 February 1841 | Midshipman in Wanderer, commanded by Joseph Denman, west coast of Africa |
| 6 April 1857 | | Lieutenant in Cumberland, commanded by John Bourmaster Dickson, flagship of Rear-Admiral Provo William Parry Wallis, south-east coast of America |
| 10 August 1858 | 11 November 1859 | Commander (2ic) in Victor Emanuel, commanded by James Willcox, Channel squadron |
| 11 November 1859 | | Commander (2ic) in Victor Emanuel, commanded by William John Cavendish Clifford, Mediterranean |
| 27 November 1863 | | Commander (2ic) in Meeanee, commanded by George Wodehouse, Mediterranean |
| 12 November 1866 | | Captain in Jumna |
| 20 February 1872 | 21 August 1872 | Captain in Aurora (from commissioning at Plymouth), sea-going training ship for boys |
| 22 August 1872 | 17 February 1875 | Captain in Revenge, flagship of Rear-Admiral Edmund Heathcote, flagship of the Port Admiral, Queenstown, replacing Mersey (and in January 1874 to take out Vice-Admiral James Robert Drummond, Commander-in-chief, Mediterranean, and replacement crews for several ships on that station, and to bring home Vice-Admiral Hastings Reginald Yelverton and the superceded crews) |