1904). Timothy H. O'Sullivan, photographer in the United States (died 1882) Deaths 15 April – Thomas Drummond, military surveyor and Under-Secretary for Ireland (born 1797 in Scotland). 21 April – Standish O'Grady, 1st Viscount Guillamore, Lord Chief Baron of the Exchequer in Ireland (born 1766). 12 June – Gerald Griffin, novelist, poet and playwright (born 1803). 20 August – George Canning, 1st Baron Garvagh, politician (born 1778). References 1840s in Ireland Ireland Years of the 19th century in Ireland