Butterley Company correspondence file on the lease and extension deed from Mrs Sarah Gregory for minerals at Bailey Brook, which was then taken over by Mr J. J. A. Woolley on her death Including draft terms of lease and mention of mining damage to property at Mirey Leys, Foden's Farm in Heanor and Cook's Farm at Langley. With plan showing objections to Bailey Brook Workings by the Coal Commission, mid 20th cent, with duplicate copies. Minutes from colliery office meeting, Oct 1932, with report of visit of Mr T. H. Bailey, Aug 1932. Jan 1931-Sep 1942