Gorseinon, Near Swansea
(No.1 @c260963197102 No.2 @259913198022 No.3 @ c260753198292)

John Glasbrook was a successful colliery owner working in collieries such as Beaufort Colliery, Birchrock Coal Company and Garngoch Collieries. His industrial interests also included the Messrs. John Glasbrook, Sons & Co., Timber Merchants of Swansea, Glasbrook’s Brick and Tile Co. of Forestfach and John Glasbrook, Sons and Co., Cambrian Steam Saw Mills, South Dock, importers of timber and slate merchants. When Phillip Richard, co-partner and brother-in-law died in 1878, he took over Morriston Collieries. He purchased Brynmor House in Swansea in 1850 and acquired land on both sides of the Glamorgan/Carmarthenshire border, including farms in the parishes of Llangyfelach, Llandeilo Talybont, Loughor, Swansea, Llandybie and Llanelli. When he died in 1887 he appointed his five sons, Thomas (d. 1892), John, Isaac Thomas [d. c.1912], David Mansell (d. 1933) and Sydney Edward [d. c1896] joint trustees of his property. They traded together in partnership as colliery proprietors known as Glasbrook Brothers in 1892. In 1898, the Glasbrook Brothers, Limited was incorporated and in 1908, it became a private company. The Bryn-y-mor estate was put for sale by auction by W J Rees in 1909. John Glasbrook Sons and Company Limited was wound up voluntarily in 1929. The brothers continued to administer the Messrs Glasbrook Bros Ltd estate until the last brother, David Mansell, died in 1933.

In 1870 the company sunk the Garngoch No.1 Pit (970613) which was situated 1.5 miles north-east of Gowerton railway station. It struck the Swansea Five-Feet seam at a depth of 205 yards, but it wasn’t until March 1914 that the Swansea Six-Feet seam was struck. At the No.1 Pit the Swansea Four-Feet seam was struck at a depth of 96 feet 10 inches and was 40 inches thick, the Five-Feet seam was hit at a depth of 486 feet 10 inches and had a section of coal 31 inches, dirt 3 inches, coal 50 inches, dirt 12 inches and coal 12 inches. The Six-Feet seam was; coal 54 inches, dirt 2 inches, coal 14 inches. The Three-Feet seam was coal 16 inches, dirt 1 inch, coal 8 inches. This pit was originally rectangular in shape until deepened between 24th May 1913 and the 14th of April 1914 to the Six-Feet seam at a depth of 259 yards when it was altered to a 14 feet diameter. The No.2 Pit was sunk in 1886 to the Three-Feet seam at a depth of 360 yards. It was one mile northwest of the No.1 Pit and worked the Six-Feet seam towards the north and the south until April 1902. It then worked the Five-Feet seam until its closure in 1921.

The No.3 Pit (612983) was opened in 1906/07 to work the coal to the east of the big fault. Sinking commenced on the 25th of August 1906 and a temporary winding engine was installed. The lease was for 200 acres of the Five-Feet seam and for fireclay. The Five-Feet seam was eventually worked northwards as far as Pontlliw and eastwards almost as far as Melin Llan.

The Six-Feet seam was gained by driving two drifts down from pit-bottom in 1924; the intake ventilation drift was 447 yards long and the return ventilation drift was 384 yards long. It was ready for production in 1926. They first tried to work the coal with the longwall system and failed, they tinkered with the Barry system but this also failed so they went back to pillar and stall style working.

In 1916 another shaft was opened 150 yards to the east of the No.1 down to the Swansea Four-Feet seam at a depth of 33 yards. A drift was used to bring the coal out with the thickness of the seam being 28 inches. It closed in 1919. The No.4 Pit was 150 yards northwest of the No.1 Pit at NGR 612970. It was sunk to the Swansea Four-Feet seam which it found at a depth of 112 feet and with a thickness of 4 feet 3 inches of coal and dirt mixed.

At the time of the explosion on the 7th of July 1880, this mine was being worked with naked lights. Two of the victims were driving a stall to communicate with another stall which, owing to a fall that morning was not being worked. When the Inspector inspected the area after the disaster he could find no gas. The victims of the disaster were John Lewis, collier aged 30 years, Daniel Rees, collier aged 29 years, Thomas Hugh aged 29 years, collier, William Morgan aged 33 years, collier, David Rosser aged 21 years, collier and Daniel Watkins aged 14 years collier’s boy. At the inquest before Mr. Strick, Coroner, the overman stated that he had inspected the area half an hour before the explosion and found it free from gas. It was thought that the gas accumulated in the vacant stall and was ignited at the lamps of the colliers. Mr. Abraham of the Miners’ Association of Wales said that he had inspected the workings after the explosion but had found no gas. He was of the opinion that gas had accumulated between two stalls after they had been joined and that the gas ignited at Rosser’s candle. He thought the fireman should have satisfied himself that there was no gas in the stall. Mr. Wales, the Inspector, voiced the opinion that the overman should be reprimanded but he did not think him criminally liable. The jury brought in a verdict of ‘Accidental Death’ and recommended that in future the overman should be more careful. It was also recommended that the colliery should, in future, be worked with safety lamps and the owner was reported to have acted on this recommendation.

In 1884 the manager was C. Richards. In 1896 it employed 52 men underground and 53 men on the surface and was still managed by Charles Richards.

There was a major strike in 1899 over wages and the hours to be worked. At the beginning of October 1899 all of the men at work in the Garngoch and Gorseinon pits, about 800, went out on strike over the arbitrater’s decision on wages and hours. The men claimed it had been decided on an unjust basis and many of their arguments had been overlooked. The men’s union strongly disapproved of the strike and urged the men to accept the deal. The men were locked out in the first week of November but discussions between the union and the Glasbrook Brothers came to an agreement after a week that the men could start back if they worked the same hours as other local pits. With the wages part of the dispute settled the union representatives put the above proposal to a mass meeting of the men. It was narrowly agreed to work 53 hours a week but the outcome was not clear enough for the union so they adjourned the meeting. The meeting re-commenced the following day with John Williams the miner’s agent arguing at length for a settlement. This was agreed upon and the men returned to work the following day. The climate was very different in December 1918 when the company could sell every ounce of coal that it produced. The men went out on strike but management quickly conceded to their demands and work recommenced.

In 1908 the No.1 was managed by J.W. Evans and employed 212 men underground and 76 men on the surface and closed in that year. The No.2 was also managed by J.W. Evans and employed 376 men underground and 78 men on the surface. It mainly worked the Swansea Four-Feet, Five-Feet and Six-Feet seams. The No.3 was managed by S.R. Morgan and employed 152 men underground and 43 men on the surface. In 1913 the No.1 Pit was reopened to facilitate sinking the shaft deeper to the steam coal seams.

In May 1913 this occurred;

RUNAWAY COLLIERY ENGINE. That portion of the Garngoch line lying between No. 1 Colliery and Gowerton Tinworks was, on Tuesday afternoon, the scene of an unusually strange happening which caused a deal of damage and excitement, but happily resulted in no bodily injuries. It appears that the colliery locomotive, driven by Mr. Daniel John, Fforest- fach, was bound for Gowerton, taking with it about fifteen trucks laden with coal. when suddenly the engine ran wild, and in spite of the driver’s efforts to impede its progress the whole train continued its headlong dash, the brakes being on but practically valueless. Having covered a distance of a mile or so, and seeing a number of stationary trucks ahead and therefore imminent danger, the driver leapt out, but hardly had he done so when things were in a state of almost indescribable chaos. The moving train dashed into the standing trucks with a thundering crash with the result that eight trucks were literally reduced, to pieces, and many others were badly damaged. So loud and startling was the report that a few hundred spectators were quickly on the spot. The driver lay prostrate about 100 yards up the line but fortunately was found to have sustained no injuries apart from shock and slight bruises. About 50 men from the British Wagon Company were promptly dispatched from Swansea and immediately set to work to effect a clearance. The accident is attributed to the gradient and the wet and slippery lines.

 In July 1914 the No.1 had raised 180 tons of ‘excellent’ quality coal but although the No.1 was improving the No.3 Pit was working an inferior coal seam which was closed when the No.1 got back into production. Fifty men were given their notices but the rest of the men decided to ‘work round’ that is form a sort of rota to fit the men in. The No.1 employed 520 men and was managed by J.W. Evans and the No.2 Pit employed 484 men and was managed by W. Morgans.

In 1915 No.1 employed 160 men and No.2 employed 513 men. In 1916 No.1 employed 135 men and was managed by W. Morgan. The No.2 employed 439 men and was managed J. Evans. The No.3 employed 468 men and was managed by D. Price. In 1918 W. Davies was the manager of No.1 and it employed 295/103, No.2 employed 164/47 and No. 3 employed 308/57 the manager of the latter two was D.J. Price. In 1919 the No.1 employed 346 men and was managed by W. Davies. No.2 employed 213 men and the No.3 employed 353 men. The latter two were still managed by D. Price. In 1923 the No.1 Pit employed 430 men working underground and 85 men on the surface with the manager being W. Davies while the No.3 Pit employed 292/84 with Mr. Price still the manager. The Garngochs, along with the nation’s other coal mines were locked-out in 1921 and 1926 until they agreed to a pay cut, the length of the stoppage was 5 months in 1921 and 7 months in 1926. In between there was another strike at Garngoch Collieries when it was found out that 50 men working there were not members of the South Wales Miners Federation -they joined up – and the strike was called off after a few days.

In 1927 the No.1 Employed 435 men under J. Tanner while the No.3 employed 355 men. At that time they worked the Swansea Four-Feet/Five-Feet and Six-Feet seams. In 1930 Mr. Tanner employed 355 men working underground and 61 men working at the surface in the No.1 Pit while D.J. Price was still in the No.3 Pit which now employed 376 men underground and 76 men working at the surface of the mine. Coal production for both the mines in that year totalled 300,000 tons.

In April 1932:

A New Power Plant was installed at the Garngoch Collieries. The new electric power plant from No. 1 to No. 3 Pits at Garngoch Collieries was formally switched on by Mr. Daniel Williams, managing director of the company and manager of the Garngoch This inaugurated a new pump plant capable of dealing with 30,000 gallons of water per hour. Garngoch Collieries are now entirely electrically equipped and consequently, there will be a speeding up of output.

In 1934 the Glassbrook Brothers Limited was based at 14, Cambrian Place, Swansea with the directors being; F.S. Padbury, D.D. Williams, Cyril Watts, Sir W.J. Firth, Captain J.S. Davies, Major J.M. Bevan, Edward Harris, David Harry and E.A. Williams. At that time it controlled three pits employing 934 miners and produced 300,000 tons of coal. In 1934 the No.1 Pit employed 50 men on the surface and 289 men underground, the manager being T. Roberts. The No.2 employed 100 men on the surface and 495 men underground with the manager being D.J. Price. In 1943/5 No.2 was managed by E. Rolfe and employed 186/75 working the Three-Feet, Six-Feet and Five-Feet seams while the No.3 was managed by D.H. Rees and employed 328/135 working the Five-Feet and Six-Feet seams.

“STAY-IN” STRIKE Management to Consider Men’s Complaint

A “stay-in” strike was declared at Garngoch No. 3 Colliery, Gorseinon, on Saturday, but it lasted only a few hours. Eighteen men on the conveyor face, who went down on the morning shift, refused to come up at two p.m. as a protest against the management’s interpretation of certain clauses in the price list. Upon receiving assurances that the management would consider their complaints. the men returned to the surface shortly after four p.m. and work was resumed as usual. The matter was discussed at a meeting of No. 1 area of the South Wales Miners’ Federation at Swansea on Saturday night, and a resolution was passed protesting against the attitude of the county police. it being alleged that the police refused to allow the lodge committee to enter the colliery premises. That was on the 29th of June 1936.

On Nationalisation in 1947 Garngoch was placed in the National Coal Board’s, South Western Division’s, No.1 (Swansea) Area, and at that time the No.1 Pit employed 67 men on the surface and 166 men underground working the Six-Feet seam and was managed by E. Rolfe. The No.3 Pit employed 115 men on the surface and 311 men underground working the Five-Feet and Six-Feet seams and was managed by D.H. Rees.

On Nationalisation the NCB stated that the No.3 Colliery consisted of; a downcast ventilation shaft (north pit) which was 119 yards and 16 feet in diameter, an upcast ventilation shaft (south pit) which was also 119 yards deep but 14 feet in diameter, and the Five-Feet New Slant 220 yards in length and temporarily stopped but used to take men in and out of the mine.

In May 1950, David Thomas, aged 82 years of age retired from Garngoch No.3 Pit after seventy years of underground work. He had started at age twelve in the Worcester pit Fforestfach earning 30 pence a week for a ten-hour day. He had been undermanager at this pit since it had been sunk 43 years previous. His son was an overman at the same pit. William Hoyles aged 68 years, a surface worker from Penllergaer, didn’t have the opportunity to retire. At the Inquest over his death held on the 27th of October 1951, the Coroner heard that Mr. Hoyles was killed on the surface of the No.3 Pit when timber that had fell off a runaway truck hit him. The verdict was death by misadventure.

In 1952 the No.3 Pit won the Divisional Cup for the fire-fighting underground competition. Garngoch No.1 Pit was closed by the National Coal Board on April 18th 1952. The headgear from the No.1 pit was used as the headgear for the Brynlliw No.2 Pit. Provision for the installation of pithead baths was approved on the 18th of November 1952 with £78,661 allocated for improving the underground transport system.

The No.3 Pit carried on working and the fatalities also carried on; John Thomas Davies, a labourer, aged 63 years on the 15th of July 1953 when he dropped dead at the pit. This was followed on the 22nd of December 1954 by the death of John Thomas aged 62 years of Cwmdu when he was run over by a bus on the surface of the mine. A potentially very serious incident was only just avoided on the 21st of January 1954 when a bus taking school children to Gowerton Grammar School crashed through the railway crossing barrier near No.3 and collided with a train of empty trucks. The ten children and the driver were all taken to hospital but only Audry Richards, aged 12 years, was injured, receiving facial wounds,

In 1954 the No.3 Pit was in the No.1 Area’s No.2 (Morlais) Group and employed 127 men on the surface and 490 men underground still working the Five-Feet and Six-Feet seams producing manufacturing and steam coals and was managed by A.C. Bevan. The colliery had its own coal preparation plant (washery) and was a depot for the NCB central stores. In 1956 the price list for the machine cut but hand filled 31 inch thick Five-Feet seam was two shillings and two pence per square yard. In 1955 there were 328 men employed on the coalfaces at this colliery, 300 men were on the coalfaces in 1956 and 286 men were working at the coalfaces in 1958. In 1959 the output of Garngoch No.3 Colliery was taken to the new washery at Brynlliw for cleaning. It was also in 1959, for the week ending the 24th of January that the No.3 Pit broke its own output record producing 4,646 tons of coal in one week.

For most people, the 1960s denote an era of sex, drugs and rock and roll, of mini skirts and mini cars, of flower power, prosperity, liberalisation and a decline in the nation’s morals. For the miners of South Wales, the 1960s are remembered as the era of pit closures. Not that pit closures had been accelerated, 76 pits closed between 1960 and 1970 in the Coalfield, exactly the same number that had been closed between 1947 and 1959, but because the number of collieries in operation was less, and that the closure programme was mainly carried out under a Labour Government, and under an NCB chairman, Sir Alf Robens, who at one time had designs on the Labour Party leadership, they appeared to be more severe than in the past. In 1960, 118 collieries produced 19,537,000 tons of coal with the manpower at 84,000 by 1970 the 52 collieries left in operation produced 11,685,478 tons of coal with a workforce of 38,000. In 1960, in Monmouthshire there were 24 pits in operation employing 16,640 men, by the end of that decade 9 pits were left employing 3,943 men, in 1970 there were only three pits left in the Rhondda Valleys; Fernhill at the top of the Rhondda Fawr, Mardy at the top of the Rhondda Fach and Lewis Merthyr/Ty Mawr at the mouth of the Valley.

This mass closure policy had the desired effect of improving the output per manshift at collieries; it went up from 20.6cwts in 1960 to 28 cwts in 1970 but failed in its attempts to stem the huge losses that the Division was running up. From the position of showing a small profit of £1.00 per ton in 1950, by 1960 the Division was showing a loss of £28.00 per ton, by 1970, despite all the closures, losses were running at £41.00 per ton. The simple fact was that during the 1960s coal’s main customers were turning to other cheaper sources for their energy, mainly oil as can be illustrated by showing sales comparisons between 1960 and 1970; during that period orders from the power stations fell from 4,380,000 tons to 3,433,000 tons, the gas market disappeared altogether, the coke market dropped from 6,151,000 tons of coal to 5,089,000 tons, the railway market fell from 1,481,000 tons to a paltry 14,000 tons and industrial orders fell from 2,214,000 tons to 759,000 tons. It was only in the house coal market that there was a slight increase in sales from 2,541,000 tons to 2,598,000 tons of coal. The National Coal Board can be blamed for wasting public money, many pits received major capital projects only months prior to their closure, as was the case of the £2.5 million invested in Nine Mile Point Colliery. in 1964, and the aura of uncertainty caused by the apparent random way that collieries were closed created a despondency amongst the men that caused them to leave the industry in droves, with the resultant closure of potentially profitable pits so that their manpower could be used to fill empty places at neighbouring pits.

Notices were issued on the 14th of January 1966 and Garngoch No.1 Colliery was closed on the 18th of April 1952.

The NCB reported that the Swansea Five-Feet seam was extremely poor, wet and liable to thin to 14 inches while the Swansea Three-Feet seam was 27 inches thick and the possibility of making a profit was remote. But the real reason for the closure was that men were required for the refurbished Brynlliw Colliery.

The scheme for re-opening and re-organisation of Brynlliw was completed in 1962 and full output of 468,000 tons was expected to be achieved in 1964/65. The 1963 annual review raises the stage 2 estimates of overall productivity and profitability to 49.1 cwts and 39/2d per ton. respectively. The higher o.m.s was actually exceeded in 1962. The results were adversely affected by poor roof conditions. Manpower was about 150 below the Divisions estimate of requirements and most of this increase was obtained by inter-divisional or long-distance transfers for whom the division has been authorised to purchase up to 77 caravans as a temporary measure. I.D.T.s then occupied 42 of these and the division decided it would not be proceeding with the remaining 35. The full housing programme planned should enable the colliery to obtain the extra men required and stabilise manpower in the long term The investment in this colliery started to pay off and in January of 1964 the colliery was attaining output per man shift figures of 50 hundredweights, one of the highest in the South Wales but still they couldn’t attract enough men to fully man it, and this is where Garngoch No.3 Colliery came in handy.

Garngoch No.3 Colliery was closed on the 11th of February 1966. Prior to closure, all its coals went to Carmarthen Bay power station.

Just some of the fatalities at these mines;

  • 17/07/1887, James Daniel, Age: 38: Sinker: Fell off a water barrel
  • 5/09/1887, David Davies, Age: 32: Labourer A loaded bucket which was being tipped by a steam crane canted and fell upon him. He had been warned to keep out of the way while the bucket was in use.
  • 27/03/1890, John Morgan, Age: 19: Collier: Fall of the roof at the entrance to a stall, where there was a framing of timber 9ft. square all of which was displaced. 5ft. seam. Pillar and stall.
  • 4/4/1910, Daniel Ford, aged 60, collier at No.3, Fall of the roof.
  • 16/8/1910, Fred Richards, aged 23, hitcher at No.2, crushed under descending cage,
  • 22/11/1910, Thomas Richards, aged 19, labourer at No.3, He was illegally riding a tram when it hit a roof support causing a roof fall which killed him.
  • 17/12/1910, William Evans, age 57, collier in the No.2 his hatchet slipped and cut his leg. He died of blood poisoning on the 1/1/1911.
  • 14/9/1911, David Williams, aged 35, collier at No.3, fall of side.
  • 22/8/1912, Henry John Lewis, aged 29, collier, fall of roof.
  • 11/3/1913, James Thomas, aged 41, haulier at No.3, was run over by trams.
  • 20/10/1913, John Jones, aged 56, engineman in No.2, He fell from the top of a wooden staircase when leaving his work and fractured his leg. He died four days later from exhaustion.
  • 27/4/1914, Thomas Feeney, aged 39, collier in No.3, fall of coal.
  • 5/6/1914, David Thomas, aged 42, collier at No.2, killed by a runaway tram.
  • 13/11/24, William Barnes, aged 21, repairer at No.3, fall of the roof.
  • 5/8/1927, Griffith Lewis, aged 65, pitman, fell down the shaft.
  • 6/3/1928, William Poole, aged 45, hewer at No.1, died of septicemia.
  • In March 1931, Rose, the widow of Hugh John McNeight of Fforestfach was awarded £600 after being forced to go to court to claim compensation for death through silicosis.
  • 4/12/1933, Gwilym David Williams, aged 49 years from Waunarlwyd was working in the No.3 Pit when a stone fell from the roof. He complained of neck pains and was treated for such and died. Following his death it was found that he was killed by a form of cancer. The Coroner gave a verdict of Death from a form of cancer following an accident.
  • 19/3/1934, David Henry Williams, a single man aged 40 years from Grovesend died under a roof fall in the No.3 Pit.
  • 16/10/1934, Frederick Thomas, aged 54, from Cockett and a repairer collapsed and died in the No.1 Pit.
  • 5/3/1936, David John Bnnett aged 50 of Penclawdd, died of a fractured skull when the roof caved in.
  • 9/1/1937, James Evans a nightshift repairer in the No.3 Pit collapsed and died as he left the pit.
  • 30/5/1942, Thomas Williams aged 56, of Fforestfach, Mr. Williams was involved in a roof fall on the 2nd of December 1922 and contracted oedema of the lungs which caused his death 20 years later.
  • 25/8/1943, Elias Williams, aged 45 of Fforestfach and a colliery examiner died under a roof fall in the No.3.
  • 4/12/1943, William John Harry, aged 50 of Penclawdd was run over and killed by a journey of trams.
  • 27/10/1951, William Hoyles, aged 68, of Penllergaer, runaway wagons on the surface caused timber to crush him.
  • 15/7/1953, John Thomas Davies, aged 63 years, of Penllergaer, labourer, died.
  • 22/12/1954, John Thomas, aged 62, of Cwmdu, was run over by a bus on the premises.

Some Statistics:

  • 1889: Output: 92,194 tons.
  • 1899: Manpower: 242.
  • 1900: Manpower: 266.
  • 1901: Manpower: 277.
  • 1902: Manpower: No.1: 273, No.2: 45.
  • 1903: Manpower: No.1: 301, No.2: 65.
  • 1905: Manpower: No.1: 317, No.2: 316.
  • 1907: Manpower: No.1: 330, No.2: 473, No.3: 134.
  • 1909: Manpower: No.1: 288, No.2: 454, No.3: 195.
  • 1910: Manpower: No.1: 44, No.2: 519, No.3: 453.
  • 1911: Manpower: No.1: 56, No.2: 544, No.3: 322.
  • 1912: Manpower: No.1: 394, No 2 513, No 3 494.
  • 1913: Manpower: 1,004.
  • 1916: Manpower: 1,042.
  • 1918: Manpower: 1,006.
  • 1919: Manpower: 912.
  • 1919: Manpower: No.1: 394, No.2: 201, No.3: 405.
  • 1920: Manpower: No.1: 394, No.2: 201, No.3: 405.
  • 1921: Output: 72,205 tons. (5 month strike)
  • 1922: Manpower: No.1: 399, No.2: 201, No.3: 405. Output: 113,719 tons.
  • 1923: Manpower: No.1: 536, No.3: 418. Output: 134,100 tons.
  • 1924: Manpower: No.1: 566, No.3: 332. Output: 74.050 tons.
  • 1925: Manpower: No.1: 434, No.3: 105. Output: 37,449 tons.
  • 1926: Manpower: No.1: 495, No.3: 434. Output: 42,961 tons.
  • 1927: Manpower: No.1: 400, No.3: 341.
  • 1928: Manpower: No.1: 440, No.3: 386.
  • 1929: Manpower: No.1: 435, No.3: 355.
  • 1930: Manpower: 868. Output: 300,000 tons.
  • 1931: Manpower: No.1: 240, No.3: 450.
  • 1932: Manpower: No.1: 320, No.3: 450.
  • 1933: Manpower: No.1: 376, No.3: 610.
  • 1934: Manpower: 954. Output: 300,000 tons.
  • 1937: Manpower: No.1: 428, No.2: 619.
  • 1938: Manpower: No.1: 370, No.2: 577.
  • 1940: Manpower: No.1: 395, No.3: 625. Output: 300,000 tons.
  • 1941: Manpower: No.1: 310, No.2: 568. Output: 300,000 tons.
  • 1943: Manpower: 734.
  • 1944: Manpower: No.1: 287, No 3: 519.
  • 1947: Manpower: 659.
  • 1948: Manpower: No.1: 234. Output: 45,000 tons.
  • 1949: Manpower: No.3: 439. Output:100,000 tons.
  • 1950: Manpower: No.1: 233, No 3: 416.
  • 1953: Manpower: 527. Output: 145,000 tons.
  • 1954: Manpower: 617. Output: 138,577 tons.
  • 1955: Manpower: 622. Output: 133,488 tons.
  • 1956: Manpower: 617. Output: 144,443 tons.
  • 1957: Manpower: 594. Output: 155,090 tons.
  • 1958: Manpower: 587. Output: 130,510 tons.
  • 1960: Manpower: 604. Output: 153,144 tons.
  • 1961: Manpower: 613. Output: 178,655 tons.
  • 1964: Manpower: 594.
  • 1965: Manpower: 455.

 

Information supplied by Ray Lawrence and used here with his permission.

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