Kirkmans 5.4.1795 adv at Batty's /  21.8.1810 & 11.9.1810 call on Kirkman
Joseph Kirkman, Esq London subscribed to Robert Robinson's Ecclesiastical Researches 1792. See DNB for Jacob & Abraham Kirkman harpsichord makers who were both dead by 1795. Their successor Joseph K PCC 1830 and a relative Jacob K DNB composer (perhaps PCC 1812). There was also a Joseph K brewer of St Giles PCC 1804, a Rev Lemuel K, Islington PCC 1820 and a Patrick K gentleman Ealing PCC 1823