Dines, H.G. The Metalliferous Mining Region of South-West England, Vol. I, p.49. Vol. II p.540, 544, 545.
Dines, H.G. The Metalliferous Mining Region of South-West England addenda and corrigenda, 1988, Vol. II p.xiii.
Hamilton Jenkin, A.K. Mines & Miners of Cornwall vol. viii p.29, 34.
List of Mines 1885-1886.
List of Mines 1892-1898.
List of Mines 1900-1901.
List of Mines 1904.
List of Mines 1906-1912.
MJ 1883 p.178
MJ 1886 p.53
The Mining Manual 1911 by Walter R. Skinner p.743.
Records of London and Westcountry Chamber of Mines Vol. 1 1901-1903 p.84, 112, 137, 155.
Records of London and Westcountry Chamber of Mines Vol. II 1904-1908 p.98.
Or: Ventonwyn Mining Syndicate.
See also: Great Dowgas Mine.