7 March 1826  Mr. Machin granted to James and George Baldwyn a Water Pit to the High or Hill Delf vein of coal to be called Cannop Engine.
Machin granted also a Water Pit called The Union, 300 yards west of above gale at the bottom of Howlers Slade.

1841  George Baldwin of Breams Eaves and James Baldwin of Camomile Green in equal moieties (as Free Miners) to Union, and to Cannop Engine and to Venus & Jupiter.
that the gales called Union and Cannop Engine are subject to an agreement for sale to Mary Ann Godwin and William Lawrence Bevir

Coal in Coleford High Delf and all others co-extensive, extending in a north-eastwards direction as deep as levels driven in each vein will drain to the line of two boundary stones, 59 and 60, to be set up as the south-western boundary of Arthur & Edward and Worrall Hill and Old Engine Collieries, in the land up to the workings of Old Furnace Colliery.
Royalty 2d. rent £80.

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12 May 1842  John Norton.  Rent fixed by Awards at £120.  Norton claiming this will force him to give up.
Norton owner of one moiety, old rent 8 guineas.
Colliery would not pay until adjoining ones exhausted - possibly 20 years.  To bring it to work would involve outlay of £5,000.
Baldwins’ galees.

John Ralph Norton and Osman Arthur Wyatt joint owners.  Shaft 118ft deep sunk on the colliery but prevented from sinking further by a flow of water which could only be overcome by engines of immense power - ruinous until adjoining collieries worked by levels becoming exhausted.

17 July 1845  Indenture 12 July 1845 between William Lawrence Bevir of Cirencester and Osmond Arthur Wyatt of Troy House, Monmouth.  Bevir conveys all his interest in Union & Cannop.  Half share for £300.

20 June 1846  A colliery adjoining about to be opened for £150, owner delighted.  Mine would cost £20,000.

14 May 1846  Two gentlemen have recently expended £11,000 in sinking a shaft to our (the High Delf) vein and have been obliged to suspend their work.  Another gentleman has laid out £24,000 in sinking a shaft - he has won the coal but it is indifferent.

Shaft actually 96 feet, cost of sinking £85.  Gin wheel, ropes etc. £40, say £125 appears to have been ‘large sum of money’ spent.

Colliery in Forest of Dean ‘To be sold by private contract 335 acres, two principal veins of 5' and 2' 6" thickness.  Property skirted for whole length by S & W Rly. which will afford direct railway communication from pits mouth to London and the East and South and West of England.

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6 August 1849  John Ralph Norton, Solicitor, Monmouth.

John Probyn complaining about the Dead Rent system.  If he had known Act would be interpreted that way by Crown ‘I would never have signed it’.

Union & Cannop previous dead rent 8 guineas after Award £120.  By 1855 eleven and a half years in arrears £1,380.

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12 August 1862  Osmond Wyatt & James Pearce King do not agree to change in rents.  To arbitration.

3 March 1864  Badness of coal - likely as proved in neighbouring Old Furnace gale.  Norton still interested.

September 1883  Osmond Wyatt registered owner.

21 September 1883  More than 40 years ago Mr. Wyatt became the owner of a moiety at a considerable price.
Previous to 1846 a shaft was sunk 118 feet - prevented from being driven further and the coal being searched for by a flow of water of such volume as could be overcome only by Steam Engines of immense power at ruinous expense.
In 1864, as Messrs. Wyatt & King were joint owners, Crown took proceedings to forfeit.
A lessee named Jenner became bankrupt, had started sinking a pit.
Up to 1875 Wyatt continued as joint owner.  In this year Col. King died and his widow became joint owner, colliery put up for auction without result.
From 1864-77 Wyatt & King and Mrs. King made constant endeavours to sell or lease the gale.
In 1878 Wyatt became sole owner.
In 1877 he sacrificed £3,441 6s 1d accumulated shorts needlessly - could have bona fide worked the upper measures.
in 1878-9 Mr. Wyatt under the impression that considerable amount of Yorkley remained in the crop - commenced work.  Drain made, an old pit on Yorkley re-opened and a number of trial pits sunk.  However, geological problems caused abandonment of the scheme.
Between this time and 1881 Mr. Wyatt could obtain no offer for purchase or letting.
Now attempting to work upper vein or Yard Delf coal.
Over last 40 years had expended £6,000 - £7,000 highest price he could get £2-3,000.

19 February 1894  O. A. Wyatt recently deceased - eldest son - O. Montague.  O. A. for 47 years agent to Duke of Beaufort, his father and grandfather.  Lease never sold.

13 November 1899  The Speech House Main Collieries Co. Ltd. purchased 30 June 1899 - commenced to drive two dipples from bottom of Speech House Hill pit.  Intended to sink another independent shaft to work Prince Albert and Union & Cannop.

27 September 1901  Speech House Colliery Co. have ceased driving a cross measure in the Brazilly.

11 October 1901  Suspended due to extraordinary and unexpected water and other difficulties the consulting & managing engineer found it impossible to continue and severed his connection with the Company, operations therefore suspended.  Scheme abandoned on advice of a Mr. Deacon - new scheme being got out £150,000 - £170,000.

24 November 1904  Crawshay’s to buy?  E. A. Trapnell under contract to buy for Crawshays.

See Cannop Colliery for further history.