1782 - 1784
This is a tentative identification of the Thomas Hibbert who was living in Bedford Square 1782-1784 with Thomas Hibbert of Chalfont: it is supported however by the 'Annals of T.H.' included in genealogical material on the family from Caribbean Vol. IV carried on Jamaica Family Search.
http://www.british-history.ac.uk/survey-london/vol5/pt2/p171;
Please note that address locations are approximate. For many claimants, the addresses are only given to the nearest town or borough. Where a full street address is provided, the address has been located as nearly as possible, but street layouts and numbering have often changed since the 19th century.