New Hartley Colliery (Seaton Valley) - Source of Reference
The information on this website is based on a range of published and unpublished works. Below is a list of the source of information used in writing this record.
(1) Instone, E. and Cranstone, D., November 1994. Monuments Protection Programme: The Coal Industry. Introduction to Step 3 Site Assessments, Appendix 1, Northumberland 19
(2) Thornes, R., 1994. Images of Industry: Coal. (RCHME), 117-18
(3) Tomlinson, W.W., 1915. 'Old Hartley Colliery', Proceedings of the Society of Antiquaries of Newcastle upon Tyne 3rd series 7(6), 73-82 (82)
(4) Aerial Photograph, RAF/CPE/UK/2352 FP 1009 04-OCT-1947