04/07/1939 – The Scotsman – Lanark County Council has been given notice by H. M. Inspector of Mines of the abandonment of the following mines … Lauchope Mills Mine Chapelhall, belonging to the Bonnybridge Silica and Fireclay Co, Ltd, Bonnybridge.
Hyndshaw Fireclay Mine, Morningside, Newmains, North Lanarkshire.
1896 – Morningside Mine – Morningside Coal Co, Newmains. Coal and Fire Clay mined. John Gray Manager. (Note – SBH – This is believed to be the Hyndshaw Mine)
1920 – Special report on the mineral resources of Great Britain – Chapel Coal Company Limited.
Morningside Brickworks, Newmains.
Situation: Near Morningside Station.
Geological formation: Coal Measures.
The fireclay used here is the floor of the Lower Drumgray Coal and is brought by rail a distance of about a mile from the company’s Chapel and Hyndshaw Pits.
The section of the seam shows fireclay variable between 2 and 3 feet. The clay as raised is grey, rooty and fairly hard; it burns a white colour and provides excellent material for making refractory bricks. It is ground at the works; the bricks are hand moulded, dried and burnt in coal-fired Newcastle kilns. The contraction is low being only 3/4of an inch. This clay seems specially adapted for difficult shapes, and a large trade in these is done. For some of these, the ground clay is mixed with ground ‘grog’ (burnt bricks) and a proportion of a ground clayey sandstone from the Fauldhouse district. Reserves: If the quality of the clay holds good throughout the field, there are ample reserves in view.
1933 – Operated by the Morningside Fireclay Company Limited.
1938 – Morningside Fireclay Company Limited. – Hyndshaw Mine. 8 employees below ground and 3 above – Abandoned. Also, reference to a Watsonhead Fireclay Mine with all the same details as Hyndshaw.