Letter, 20 August 1872
Letter, 1 March 1877
Letter, 2 May 1877
Letter, 29 May 1885
Letter, 9 August 1885
Letter from G.F. Armstrong to B.J. Harrington, written from Grasmere.
Letter, 26 June 1885
Letter, 25 July 1885
Letter, 12 August 1885
Letter, 19 June 1885