- manuscript - H.H. Godwin-Austen, Journal of a Tour in Assam, 26th November 1872 to 15th April 1873
- published - Appendices. 'Detailed Report on the Naga Hills Expedition of 1878-80', Capt. P.J. Maitland
- printed - tour diary of the Deputy Commissioner of the Naga Hills for the year 1870-1872 (John Butler) volume two