Richard and Mabel Crofton to their son Denis, from Hong Kong and Japan (1913) with Guide to Unzen, Nagasaki Prefecture, Japan; letters to Denis from Zanzibar (1915-19), and South Africa (1919) Dated as: 1913,1915, 1917-19
Report of a Mission appointed to investigate the Clove Trade in India, Burma, Ceylon, British Malaya and the Dutch East Indies, by G D Kirsopp and C A Bartlett