David Albemarle Bertie Dewar b. 8 July 1794, d. 25 November 1859 (1794–1859) Parents Penelope Susannah Mathew David Dewar Children George Dewar Elizabeth Ann Dewar Albemarle Dewar Siblings Jane Charlotte Dewar George Edward Mathew Brownlow Dewar Charles Brownlow Cumberland Partners Ann Louisa Magennis