Letter, 17 January 1851
Letter, 14 March 1851
Letter, 6 June 1851
Letter, 30 July 1852
Letter, 13 May 1853
Letter, 11 May 1855
Letter, 11 May 1855
Letter, 31 January 1857
Letter, 31 January 1857
Letter, 2 April 1857
Letter, 20 December 1858
Letter, 7 October 1859