""Thomas Drummond, Undersecretary in Ireland, 1835-40: Life and Letters"" is a biographical work written by Richard Barry O'Brien in 1889. The book chronicles the life of Thomas Drummond, who served as the Undersecretary in Ireland from 1835 to 1840. The author draws upon Drummond's personal letters and other historical documents to provide a detailed account of his life and work in Ireland during a tumultuous period in the country's history. Drummond...