William Maltby (1763–1854) was an English solicitor, librarian and bibliographer, known also as a close friend of the poet Samuel Rogers.
Born in London on 17 January 1763, he was youngest of the ten children of Brough Maltby, a wholesale draper, of Mansion House Street, and his wife Ann Dyer; Edward Maltby the bishop was a first cousin, as was the journalist John Dyer Collier, father of John Payne Collier.
[1] Rowland Maltby was a witness in 1809 for the parliamentary investigation into the affair of Mary Anne Clarke, supposed as a royal mistress to have sold army commissions.
[1][2] He twice moved the books within London—in 1811 from Sir Robert Clayton's house in the Old Jewry to King's Arms Yard, Coleman Street, and in 1818 to 11 Finsbury Circus.
[5] Maltby died at the London Institution on 5 January 1854, and was buried at Norwood cemetery, where a tablet was erected to his memory by his old friend Rogers.