Tabanus: To distinguish him from his brother Thomas Inglis Hampton :
1808: John William Hampton b. 27 Oct 1808 in Calcutta, Bengal (India): http://www.ciaofamiglia.com/ehfburt...
1838: Marriage 1 January between (John) William Hampton, son of Samuel Hampton and Thomasine Frances Osborne, in Parish Chapel, St Pancras, Camden, London. The orig. form has William Hampton in the name field with John added to the line above, giving "John William Hampton" or "William John Hampton". According to the family trees, Thomasine Frances Osborne was the sister of his brother's wife Elizabeth Saunders Osborne.
1851 census, Regents Park St Pancras Middlesex: John W. Hampton, 42, b. in Calcutta, Actuary, Thomasine F., 47, b. in Ireland, Edith J., 10
1861 census, Christchurch St Marylebone Middlesex: John W Hampton, 52, b. in India Calcutta, Shareholder, Thomasine F., 45, b. in Ireland Limerick, Edith T., 20.
1862: <We beg to lay before our readers two games played by Captain H. A. Kennedy against Lord Cremorne and <Mr. William Hampton>. Both games are highly interesting. Lord Cremorne's play in the contest with Capt. Kennedy deserves high praise. His termination would do credit to the most experienced practitioner. In the other game Captain Kennedy had to encounter an Amateur of no ordinary ability. The games are well worthy the perusal of our readers.> (the two games follow) (The Era, 4 May 1862) (Bath Chronicle 8 May also gives the game and says it was played at the St. George's club)
1862: <On Thursday a General Meeting of the members of the Chess Association was held at the St. George's Chess Club, Lord Lyttelton being in the chair. A large number of persons was present, among whom we observed A. Mongredien, Esq.; G. W. Medley, Esq.; <T. J. Hampton, Esq.; W. Hampton, Esq.>; ...> (The Era, 20 July 1862)
1864: <T. J. Hampton, and W. Hampton, of the St. George's> (The Era, 24 April 1864)
1865: <Yesterday evening, the annual soiree of the Bristol Chess Club was held in the lecture-hall of the Athenĉum, and the proceedings were highly enjoyable. There was a large attendance of ladies and gentlemen, amongst the latter being Capt. Kennedy, president of the Bristol and Bath Chess Clubs, Dr. Biggs, Mr. Thorold, Mr. Stephens, <Mr. Hampton (brother to the honorary secretary of the St. George's Chess Club, London)>, and Mr. Newnham, of Bath; ...> (Bristol Times and Mirror, 9 Nov 1865)
1866: <British Chess Association. - General Meeting. ... The following gentlemen were then chosen to serve on the Managing Committe (in addition, of course, to the ex officio members): - Rev. W. Wayte, .... <J. W. Hampton>, John Baker, ...> (The Era, 11 March 1866)
1866: <Anderssen, at present recognized as the European champion, comes from Germany in July to play a match with the brilliant Steinitz. ... For particulars apply to <J. W. Hampton, Esq. treasurer to the fund, St. George's Club, 20. King-street>, or to George Medley, Esq. hon sec to the British Chess Association.> (Bell's Life, 9 June 1866)
1873: <24 February. The Will of John William Hampton late of 45 Beaumont-street Portland-place in the County of Middlesex Esquire who died 4 February 1873 at 118 Buckingham-Palace-road in the said County was proved at the Principal Registry by Thomasine Frances Hampton Widow the Relict and George Alexander Osborne Gentleman both of 5 Ulster-terrace Regent's-park in the said County the Executors.> (England & Wales National Probate Calendar)