1. British Library (BL)
2. IOR/F/4/2472/138452 Mahamari disease [fever] prevailing in Garhwal
3. IOR/V/23/121, Pt 35 Art 4: 1861 Frank Pearson, Report on mahamuree [mahamari] [plague] and smallpox in Gurhwal [Garhwal] (Allahabad: Government Press, 1861)
4. IOR/V/27/314/695 Garhwal: Report on the settlement of the district of Gurhwal in the province of Kumaon, 184. J H Batten. Agra, 18432
5. IOR/V/27/68/233 Batten, J H (ed), Official reports on the Province of Kumaon with a medical report on the Mahamurree Gurhwal in 1849-50. Agra: Secundra Orphan Press, 1851