""Thomas Drummond, Undersecretary In Ireland, 1835-40: Life And Letters"" is a historical biography written by Richard Barry O'Brien and first published in 1889. The book chronicles the life and work of Thomas Drummond, who served as the Undersecretary in Ireland from 1835 to 1840. Through a collection of letters and personal accounts, the book provides an in-depth look at Drummond's role in Irish politics during a tumultuous period in the country's...