An excerpt from p. 234 of Patrick Lynch and John Vaizey's book Guinness's Brewery in the Irish Economy 1759-1876, Cambridge University Press, 1960; the passage discusses clerks working for the Guinness company between the 1820s and 1840s, including Dion Boucicault. An excerpt from p. 234 of Patrick Lynch and John Vaizey's book Guinness's Brewery in the Irish Economy 1759-1876, Cambridge University Press, 1960; the passage discusses clerks working for the Guinness company between the 1820s and 1840s, including Dion Boucicault. 1840-1960