1841 John Trotter, Theophilus Trotter, James Thomas, William Whitworth, Nathan Atherton, Joseph Priestley, and William Crowdy, trading as the firm of Trotter, Thomas & Co. and known as the Vallets Level Company.  To the land side of Birch Hill Folly Level known as Winnall, or Upper Success Level.
John Blanch of Fetter Hill, free miner, to the remainder.
Birch Hill Folly Colliery - all that tract of coal in the Coleford High Delf vein.

F3 286
John Blanch
 1841 2,325 tons
 1842 5,298
 1843 5,022
 1844 4,965
 1845 4,834
 1846 4,374

1 October 1875 Surrendered; regaled as part of New Birch Hill Folly to James Barnard and Reuben Joynes of Coleford.

BIRCH HILL FOLLY No. 2
F3 417
28 March 1883 Forfeited

11 October 1889 E.R. Morse wishing to regale the ‘New Birch Hill Folly Colliery’ which had been forfeited.

11 January 1890 Gale granted to Edmund Riley of Yorkley.

13 July 1893 Edward Osbourne had lost £300 and was requesting a lowering of the dead rent.

1894 Output for Birch Hill Folly No. 2 (Osbourne) 1,516 tons
30 June 1896 To be surrendered ‘For the past four years I have spent several hundred pounds in trying to open out the colliery’ Edward Osbourne.  He had reopened Winnall 86 yards.
Conveyed Morse to Osbourne??

23 October 1896  Conveyed to Brown and Ellis

2 March 1923 ‘DFM’ Birch Hill Folly No 3.  Colliery Gale for Sale.

1934 Ben Brown retired.

1954 Birch Hill Folly No. 3  B. Ellis & W.J. Brown, Wynols Hill Gate, Nr. Coleford.