Griffinhoofe, the son of a conscientious clerical pluralist and grandson of a Chelmsford apothecary, was articled to an attorney in 1790 and practised as a solicitor in Chancery from 1795. He appeared in the lists of London attorneys until 1809, with an office at Grays Inn Square.
Griffinhoofe did not subsequently attempt to enter Parliament, but he was a steward for the Friends of Constitutional Reform in 1811 and on 30 Sept. 1812 wrote to Whitbread offering him the disposal of his votes for London, Middlesex, Hertfordshire, Norfolk, Buckingham and Aylesbury, as a token of his admiration, particularly for Whitbread’s support of a ‘constitutional reformation in Parliament’.
