Surveyor
Sources
- Historical records of the Survey of India (Dehra Dun, 1945-48) by Reginald Henry Phillimore. Comprises 5 volumes. Available on open shelves at British Library shelfmark OIR.354.54. Includes biographical notes of persons involved in the geographical and historical survey of India (the Great Trigonometrical Survey of India) from 1777 to 1843.
Historical books online
- A Memoir On The Indian Surveys by Clements R Markham Archive.org First Edition 1871, 2nd Edition 1878