Garswood Hall Collieries Co
of Wigan
1905 The company was registered on 21 November, in reconstruction of a company of the same name (incorporated in 1883), and owning collieries at Ashton-in-Makerfield, Lancashire. [1]
1929 Garswood Hall Collieries Co Ltd and Garswood Hall Coal and Iron Co owned 6 pits and had 3,600 employees[2]