Portrait painter and caricaturist, born Dublin, Ireland, 1797; died London, England, 1868. He came to London, 1821, as a portrait painter, but began his clever and good-humored caricatures in 1827. About 600 of these are in the British Museum and constitute a graphic history of contemporary events. He concealed his identity under his double signature disguised as H.B. Father of Richard Doyle.