View source for GWR 4900 Class

{{Short description|Class of 259 two-cylinder 4-6-0 locomotives}}
{{Use dmy dates|date=October 2022}}
{{Use British English|date=January 2018}}
{{Infobox locomotive
| powertype = Steam
| name = GWR 4900 Class
| image = 5900 Hinderton Hall Didcot.jpg
| caption = [[GWR 4900 Class 5900 Hinderton Hall|5900 ''Hinderton Hall'']] at [[Didcot Railway Centre|Didcot]] in 2010
| designer = [[Charles Collett]]
| rebuilder = GWR [[Swindon Works]]
| builder = GWR [[Swindon Works]]
| ordernumber = Lots 254, 268, 275, 281, 290, 297, 304, 311, 327, 333, 338, 340
| rebuilddate = 1924
| serialnumber = 
| builddate = 1928–1943
| numberrebuilt = 1 (4900 ''Saint Martin'')
| totalproduction = 258
| whytetype = [[4-6-0]]
| uicclass = 2′C h2
| gauge = {{track gauge|56.5in|allk=on}}
| leadingdiameter = {{convert|3|ft|0|in|3|abbr=on}}
| driverdiameter = {{convert|6|ft|0|in|3|abbr=on}}
| minimumcurve = {{convert|8|chain|0}} normal,<br/>{{convert|7|chain|0}} slow
| length = {{convert|63|ft|0+1/4|in|m|2|abbr=on}} over [[buffer (rail transport)|buffers]]
| width = {{convert|8|ft|11+1/4|in|m|3|abbr=on}}
| height = {{convert|13|ft|3+1/4|in|m|3|abbr=on}}
| axleload = {{long ton|18|19}}<br/>({{convert|18|LT|19|Lcwt|ST|1|abbr=on|disp=output only}})
| weightondrivers = {{long ton|57|0}}<br/>({{convert|57|LT|0|Lcwt|ST|1|abbr=on|disp=output only}})
| locoweight = {{long ton|75|0}}<br/>({{convert|75|LT|0|Lcwt|ST|1|abbr=on|disp=output only}})
| tenderweight = {{long ton|46|14}}<br/>({{convert|46|LT|14|Lcwt|ST|1|abbr=on|disp=output only}})
| fueltype = [[Coal]]
| fuelcap = Churchward tender: {{convert|7|LT|t ST|1|abbr=on}}<br/> Collett/Hawksworth tender: {{convert|6|LT|t ST|1|abbr=on}}
| watercap = Churchward tender: {{convert|3500|impgal|abbr=on}} <br/> Collett/Hawksworth tender: {{convert|4000|impgal|abbr=on}}
| boilerpressure = {{convert|225|lbf/in2|abbr=on}}
| firearea = {{convert|27.07|sqft|abbr=on}}
| boiler = GWR Standard No. 1
| tubesandflues = {{convert|1686.60|sqft|abbr=on}}
| fireboxarea = {{convert|154.78|sqft|abbr=on}}
| superheaterarea = {{convert|262.62|sqft|abbr=on}}
| cylindercount = Two, outside
| cylindersize = {{convert|18.5|x|30|in|mm|0|abbr=on}}
| tractiveeffort = {{convert|27275|lbf|kN|2|lk=on|abbr=on}}
| operator = [[Great Western Railway|GWR]] » [[British Railways|BR]]
| powerclass = ''GWR:'' D,<br/>''BR:'' 5MT
| fleetnumbers = 4900–4999, 5900–5999, 6900–6958
| officialname = Hall
| axleloadclass = ''GWR:'' Red
| withdrawndate = 1941 (4911 ''Bowden Hall'', was destroyed beyond repair during a bombing raid and then cut up), 1959–1965 (remainder)
| preservedunits = [[GWR 4900 Class 4920 Dumbleton Hall|4920]], [[GWR 4900 Class 4930 Hagley Hall|4930]], [[GWR 4900 Class 4936 Kinlet Hall|4936]], [[GWR 4900 Class 4942 Maindy Hall|4942]], [[GWR 4900 Class 4953 Pitchford Hall|4953]], [[GWR 4900 Class 4965 Rood Ashton Hall|4965]], [[GWR 4900 Class 4979 Wootton Hall|4979]], [[GWR 4900 Class 5900 Hinderton Hall|5900]], [[GWR 4900 Class 5952 Cogan Hall|5952]], [[GWR 4900 Class 5967 Bickmarsh Hall|5967]], [[GWR 4900 Class 5972 Olton Hall|5972]]
| disposition = Ten preserved or extant (two operational as of March 2021), <br/>one rebuilt as [[GWR 2900 Class 2999 Lady of Legend|''Saint'' class]],<br/>remainder scrapped
}}

The '''Great Western Railway 4900 Class''' or '''Hall Class''' is a class of [[4-6-0]] [[mixed-traffic locomotive|mixed-traffic]] [[steam locomotive]]s designed by [[Charles Collett]] for the [[Great Western Railway]]. A total of 259 were built at [[Swindon Works]], numbered 4900–4999, 5900–5999 and 6900–6958. The [[LMS Stanier Class 5 4-6-0]] and [[LNER Thompson Class B1]] both drew heavily on design features of the Hall Class. After nationalisation in 1948, [[British Railways]] gave them the [[power classification]] 5MT.

== Background ==
By the end of 1923 the [[Great Western Railway]] (GWR) was well served with express passenger locomotives of the [[GWR 2900 Class|Saint]] and [[GWR 4000 Class|Star]] classes and had recently introduced the [[GWR 4073 Class|Castle Class]]. However, the [[mixed-traffic locomotive|mixed-traffic]] [[2-6-0]] locomotives of the [[GWR 4300 Class|4300 Class]] were beginning to struggle with the increasing loads. [[George Jackson Churchward]] had recognised this with the introduction of the [[GWR 4700 Class|4700 class]] [[2-8-0]] with {{convert|5|ft|8|in|m|3|abbr=on}} driving wheels, intended for express goods and relief passenger trains. However, [[Charles Collett]] preferred the idea of a Saint Class with smaller wheels to undertake these duties as this would provide a leading [[bogie]]. He therefore rebuilt number 2925 ''Saint Martin'' with {{convert|6|ft|m|3|abbr=on}} driving wheels.{{sfnb|le Fleming|1960|p=H29}}

===Prototype===
The prototype of the new class was rebuilt in 1924 and the cylinders were realigned in relation to the driving axle and a more modern 'Castle'-type cab was fitted. ''Saint Martin'' emerged from [[Swindon Works]] in 1924 and embarked on three years of trials. During this period Collett introduced other modifications such as changing the pitch of the taper boiler and adding outside steam pipes.<ref>{{cite web |title=GWR Locomotives: The Hall Class |url=https://wearerailfans.com/c/article/gwr-hall-class-allen-jackson |access-date=8 October 2022 |website=wearerailfans.com |archive-date=8 August 2024 |archive-url=https://web.archive.org/web/20240808105218/https://wearerailfans.com/c/article/gwr-hall-class-allen-jackson |url-status=live }}</ref><ref>{{cite web |date=16 June 2017 |title=4900 4-6-0 GWR Collett Hall 4900 – 4999 & 6900 – 6958 |url=https://preservedbritishsteamlocomotives.com/4900-4-6-0-gwr-collett-hall-4900-4999-6900-6958/ |access-date=8 October 2022 |website=Preserved British Steam Locomotives }}</ref>

==Production==
After extensive trials during 1925–1927, Collett was satisfied with the performance of his prototype, subject to minor amendments and placed an order for eighty more with Swindon works (Lot 254) in 1928. The prototype was renumbered 4900 in December 1928 and the new locomotives were numbered 4901-80 and appeared at regular intervals until February 1930.{{sfnb|le Fleming|1960|p=H29}} They were named after English and Welsh [[English country house|country houses]] with 'Hall' in their titles and so became known as the 'Hall Class'.<ref>{{cite magazine |title=Hall of Fame |magazine=[[Railway Magazine]] |issue=861 |date=January 1973 |pages=4–9 }}</ref>

They differed little from the prototype; the bogie wheel diameter had been reduced by two inches from {{convert|3|ft|2|in|m|3|abbr=on}} to {{convert|3|ft|0|in|m|3|abbr=on}} and the valve setting amended to give an increased travel of {{convert|7.5|in|mm|0|abbr=on}}. The overall weight of the locomotive had increased by {{long ton|2|10}} to {{long ton|75|0}} but a tractive effort of {{convert|27275|lbf|kN|abbr=on}} compared favourably with the {{convert|24935|lbf|kN|abbr=on}} of the 'Saint'. The original locomotives were built with Churchward {{convert|3500|impgal|abbr=on}} [[Tender (railroad car)|tenders]] but after 4958 Collett's larger {{convert|4000|impgal|abbr=on}} types became standard although a few later locomotives were fitted with smaller tenders if these were available as they entered service.{{sfnb|le Fleming|1960|p=H30}}

The first fourteen examples were despatched to the arduous proving grounds of the [[Cornish Main Line]]. They were so successful here and elsewhere on the GWR system that by the time the first production batch had been completed a further twenty were on order (Lot 268, 4981–99 and 5900). Further orders followed throughout the 1930s and early 1940s. By 1935, 150 were in service and the 259th and last Hall, No. 6958 ''Oxburgh Hall'', was delivered in 1943. Thereafter further deliveries were of the '6959 Modified Hall' class.

{| class="wikitable" style="text-align:center"
|+ Table of orders and numbers{{sfnb|Allcock|Davies|le Fleming|Maskelyne|1968|pp=35–39}}
! Year !! Quantity !! Lot No. !! Locomotive numbers !! Notes
|-
| 1924 || {{0}}1 || — || 4900 || align=left | rebuilt from 2925 ''Saint Martin''
|-
| 1928–30 || 80 || 254 || 4901–4980 || align=left | 
|-
| 1931 || 20 || 268 || 4981–4999, 5900 || align=left | 
|-
| 1931 || 20 || 275 || 5901–5920 || align=left | 
|-
| 1933 || 20 || 281 || 5921–5940 || align=left | 
|-
| 1935 || 10 || 290 || 5941–5950 || align=left | 
|-
| 1935–36 || 15 || 297 || 5951–5965 || align=left | 
|-
| 1937 || 10 || 304 || 5966–5975 || align=left | 
|-
| 1938 || 10 || 311 || 5976–5985 || align=left | 
|-
| 1939–40 || 10 || 327 || 5986–5995 || align=left | 
|-
| 1940 || 10 || 333 || 5996–5999, 6900–6905 || align=left | 
|-
| 1940–41 || 10 || 338 || 6906–6915 || align=left | 
|-
| 1941–43 || 43 || 340 || 6916–6958 || align=left | 
|}

===Oil firing===
{{Main|GWR oil burning steam locomotives}}
Eleven Hall class locomotives were converted to [[Oil burner (engine)|oil-firing]] in the period 1946–1950. While in this condition they were [[GWR locomotive numbering and classification#Oil burning locomotives|renumbered into the 3900 series]]. When the oil-firing was removed, they reverted to their old numbers.<ref>{{cite book |last1=Haresnape |first1=Brian |title=Collett & Hawksworth locomotives: a pictorial history |date=1978 |publisher=Ian Allan |location=London |isbn=0-7110-0869-8 }}</ref> A proposal to convert preserved locomotive 4965 ''Rood Ashton Hall'' to oil firing was confirmed in March 2024.<ref name=“Oil4965”/>

==Performance==
As indicated by their continuing production, the Hall class proved to be very successful in a variety of different roles from goods work to passenger services, although barred from several cross-country and branch lines because of their red [[Great Western Railway Power and Weight Classification|weight classification]].<ref>{{cite web |date=29 May 2020 |title=Halls of Fame – A Mixed Traffic Masterpiece |url=https://twsmedia.co.uk/2020/05/29/halls-of-fame-a-mixed-traffic-masterpiece/ |access-date=8 October 2022 |website=Railway Matters |archive-date=30 September 2022 |archive-url=https://web.archive.org/web/20220930090712/https://twsmedia.co.uk/2020/05/29/halls-of-fame-a-mixed-traffic-masterpiece/ |url-status=live }}</ref> According to Peter Herring, 'they were the first true mixed traffic locomotives, and as such precursors of the [[LMS Stanier Class 5 4-6-0|Stanier 'Black Five']], [[LNER Thompson Class B1|Thompson B1]] and [[BR standard class 5|BR Standard 5MT]] [[4-6-0]].'<ref>{{cite book |last = Herring|first = Peter|title = Classic British Steam Locomotives|publisher = Abbeydale Press|location = Wigston|year = 2004|page = 118|isbn = 1-86147-138-6}}</ref> (However, while they were forerunners of these highly successful and numerous 4-6-0 types, there were several successful [[2-6-0]] and [[4-6-0]] ‘mixed traffic’ types on the GWR and other British railways before them,<ref>{{cite book |last = Casserley|first = H.C.|title = The Historic Locomotive Pocket Book|publisher = Batsford|location = London|year = 1960|pages = 217, 222}}</ref> - not least the [[GWR 4300 Class]] they were designed to replace.<ref>{{cite book |last = Casserley|first = H.C.|title = Locomotives of British Railways |publisher = Spring Books|location = London|year = 1961|page = 28}}</ref>)

==Modified Hall Class==
{{main|GWR 6959 Class}}
Although the GWR had been at the forefront of British locomotive development between 1900 and 1930, the 1930s saw a degree of complacency at Swindon reflected in the fact that the design had largely originated in the 1900s and had not fundamentally changed since the mid-1920s.<ref>{{harvnb|Herring|2004|p=158}}</ref> Collett was replaced by [[Frederick Hawksworth]] in 1941 who created a modified version of the design, known as the [[GWR 6959 Class|Modified Hall Class]].<ref>{{cite web |last=Duggan |first=Jaime |date=7 September 2018 |title=GWR 4900 'Hall' and 6959 'Modified Hall' Class steam locomotives - Class Information |url=https://www.railadvent.co.uk/2018/09/gwr-4900-hall-and-6959-modified-hall-class-steam-locomotives-class-information.html |access-date=8 October 2022 |website=RailAdvent |archive-date=8 October 2022 |archive-url=https://web.archive.org/web/20221008131253/https://www.railadvent.co.uk/2018/09/gwr-4900-hall-and-6959-modified-hall-class-steam-locomotives-class-information.html |url-status=live }}</ref> These continued to be produced by [[British Railways]] until 1950, by which time there were a further seventy-one locomotives.

==Accidents and incidents==
*On 30 April 1941, 4911 ''Bowden Hall'' took a direct hit during a bombing raid on the [[Keyham, Devon|Keyham]] area of [[Plymouth]] and was later broken up.<ref name=GWA>{{cite book|last=Riley|first=RC|title=Great Western Album|publisher=[[Ian Allan Publishing]]|location=Shepperton|year=1966|page=90|isbn=0-7110-0073-5}}</ref> The locomotive had stopped at a signal box because of an air raid, and the crew survived by sheltering under the steps of the signal box.<ref name=GWRatWar>{{cite book|title=The Great Western at War 1939-1945|first=Tim|last=Bryan|publisher=Patrick Stephens|place=Yeovil|date=1995|edition=1|isbn=1-85260-479-4|oclc=60238810|page=94}}</ref> 4911 was one of two GWR locomotives damaged beyond repair in Britain during [[World War II]], the other was [[GWR 1854 Class]] No. 1729. [[GWR 4900 Class 4936 Kinlet Hall|4936 ''Kinlet Hall'']], ran into a bomb crater in that area and was severely damaged, but was repaired.<ref name=RailwayMagazine>{{cite magazine |last1=Stewart-David|first1=David|last2=Wood|first2=Peter|date=July 2014|title=The role of railways in the Second World War |magazine=[[The Railway Magazine]]|location=Horncastle|publisher=Mortons Media|volume=160|number=1,360|issn=0033-8923|page=50}}</ref>
*On 13 February 1961, 6949 ''Haberfield Hall'' was in collision with a freight train that was being shunted at {{rws|Baschurch}}, due to a signalman's error. Three people were killed and two were injured.<ref name=Earnshaw7>{{cite book |last=Earnshaw |first=Alan |title=Trains in Trouble: Vol. 7 |year=1991 |publisher=Atlantic Books |location=Penryn |isbn=0-906899-50-8 |page=39 }}</ref>
*On 25 August 1962, a passenger train, hauled by a [[British Rail Class 43 (Warship Class)|Warship class]], D833 ''Panther'', stopped at {{rws|Torquay}}, due to the failure of the locomotive hauling it. 4932 ''Hatherton Hall'' was hauling a passenger train that overran signals and was in a rear-end collision with it. Twenty-three people were injured.<ref name=Earnshaw8>{{cite book|last=Earnshaw|first=Alan|title=Trains in Trouble: Vol. 8|year=1993|publisher=Atlantic Books|location=Penryn|isbn=0-906899-52-4|pages=Front cover, 3}}</ref>

==Withdrawal==
All but one of the original Collett Halls survived until nationalisation in 1948, the exception being 4911 ''Bowden Hall''. Withdrawals began in 1959 with the prototype ''Saint Martin''. Its accumulated mileage, both in its original form and rebuilt form, was a remarkable 2,092,500 miles. Further withdrawals of the production series took place during the 1960s with the final 9 members of the class being withdrawn in December 1965.<ref>{{Cite web|url=https://www.brdatabase.info/locoqry.php?action=class&id=146005&type=S&page=fleet|title=BRDatabase - the Complete British Railways Locomotive Database 1948-1997|website=www.brdatabase.info|access-date=29 October 2023|archive-date=8 August 2024|archive-url=https://web.archive.org/web/20240808105219/https://www.brdatabase.info/locoqry.php?action=class&id=146005&type=S&page=fleet|url-status=live}}</ref>
{|class="wikitable" style=text-align:center
! Year !! Quantity in<br>service at<br>start of year !! Quantity<br/>withdrawn !! Locomotive numbers !! Notes
|-
| 1941 || 210 || 1 || align=left | 4911 || align=left | Destroyed by bomb.
|-
| 1959 || 257 || 2 || align=left | 4900/40 || align=left | 
|-
| 1960 || 255 || 2 || align=left | 4901,<br>5915 || align=left | 
|-
| 1961 || 253 || 8 || align=left | 4926/45/97,<br>5907/49-50,<br>6902/49 || align=left | 
|-
| 1962 || 245 || 73 || align=left | 4906/09/12-13/17/21/25/31/34/37-38/41/44/47-48/52/57/60-61/63/65/67-69/71/73-74/77/82/84/86-87/90/95/99,<br>5902/06/09-13/16-18/20-21/25-26/28/30-31/35/40-41/46-47/53/59-60/64-66/68-69/73/80-82/89/96-97/99 || align=left | 4965 preserved.
|-
| 1963 || 172 || 67 || align=left | 4902/04-05/07-08/10/14-15/18/22/24/27-28/30/35/39/42-43/46/53/55-56/64/66/70/75/79-81/83/91/94/96/98,<br>5900/03-05/08/19/23-24/29/37-38/42-45/48/54/56/70/72/77-78/85-86/93-95,<br>6919-20/29/38/43/48 || align=left | 4930, 4942, 4953, 4979, 5900, 5972 preserved.
|-
| 1964 || 105 || 56 || align=left | 4903/16/19/23/32-33/36/49-51/54/58-59/72/76/78/85/88-89,<br>5901/14/22/27/34/39/51-52/57-58/62-63/67/74-76/79/87/91/98,<br>6900-01/05/09/12-14/25/33/36/40-42/45-46/50/54 || align=left | 4936, 5952, 5967 preserved.
|-
| 1965 || 49 || 49 || align=left | 4920/29/62/92-93,<br>5932-33/36/55/61/71/83-84/88/90/92,<br>6903-04/06-08/10-11/15-18/21-24/26-28/30-32/34-35/37/39/44/47/51-53/55-58 || align=left | 4920 preserved.
|}

==Preservation==
{{See also|List of GWR 4900 Class locomotives}}
By 1965, the last Hall had been withdrawn from the Western Region without a single example entering the National Collection. Despite this, 11 of the class did survive into preservation, all being rescued from [[Woodham Brothers|Barry Island Scrapyard]]. The first member of the class to be rescued, and the 10th departure from Barry, was [[GWR 4900 Class 4965 Rood Ashton Hall|4965 ''Rood Ashton Hall'']], which left in October 1970. The engine was at this point assumed to be 4983 Albert Hall, but in 1998, the restoration team at the Birmingham Railway Museum discovered its true identity to be that of 4965.<ref>{{Cite web|url=http://news.bbc.co.uk/2/hi/uk_news/52451.stm|title=BBC News &#124; UK &#124; Rail buffs on wrong track (and train)|website=news.bbc.co.uk|access-date=8 August 2024|archive-date=8 August 2024|archive-url=https://web.archive.org/web/20240808105220/http://news.bbc.co.uk/2/hi/uk_news/52451.stm|url-status=live}}</ref> The last unmodified Hall to leave Barry, and the 187th departure, was [[GWR 4900 Class 5967 Bickmarsh Hall|5967 ''Bickmarsh Hall'']] in August 1987.<ref>{{Cite web|url=http://www.greatwestern.org.uk/barrygwr.htm|title=The Story of Barry scrapyard|website=www.greatwestern.org.uk}}</ref>

Seven of the class have run in preservation, with all six of the UK-based engines having operated on the main line: [[GWR 4900 Class 4930 Hagley Hall|4930 ''Hagley Hall'']], [[GWR 4900 Class 4936 Kinlet Hall|4936 ''Kinlet Hall'']], [[GWR 4900 Class 4953 Pitchford Hall|4953 ''Pitchford Hall'']], [[GWR 4900 Class 4965 Rood Ashton Hall|4965 ''Rood Ashton Hall'']], [[GWR 4900 Class 5900 Hinderton Hall|5900 ''Hinderton Hall'']] and [[GWR 4900 Class 5972 Olton Hall|5972 ''Olton Hall'']]. 5972 ''Olton Hall'' gained fame as 'Hogwarts Castle', the locomotive used in the [[Harry Potter (film series)|''Harry Potter'' film series]]. [[GWR 4900 Class 4920 Dumbleton Hall|4920 ''Dumbleton Hall'']] has operated in preservation, but is now on static display as part of the new [[Harry Potter]] attraction which opened in Tokyo in 2023.

As of March 2024 two Halls are operational: 4930 and 4953 but neither are mainline certified. 4936 Kinlet Hall is undergoing a [[Network Rail]] standard overhaul at [[Tyseley Locomotive Works]]. In January 2024 it was announced that subject to funding for its next mainline standard overhaul [[GWR 4900 Class 4965 Rood Ashton Hall|4965 ''Rood Ashton Hall'']] will be converted to become oil-fired.<ref name="“Tyseley”">{{cite magazine |title=Tyseley selling two locos with a third for oil firing conversion |magazine=Heritage Railway |issue=316 |date=February 2024 |page=56}}</ref> It was confirmed in March 2024 that 4965 will be converted to oil firing during its next overhaul.<ref name=“Oil4965”>{{cite magazine |title=4965 Confirmed as getting oil conversion |magazine=Steam Railway |issue=555 |date=March 2024 |page=22}}</ref> On completion of its overhaul 4965 is intended to be Tyseley's primary mainline engine for their "Shakespeare Express" and "Polar Express" trains.<ref name=“Oil4965”/>

Of those engines which have not run in preservation, 4942 ''Maindy Hall'' has been converted back to a [[GWR 2900 Class|GWR ''Saint'' Class]] ([[GWR 2900 Class 2999 Lady of Legend|2999 ''Lady of Legend'']]), 4979 ''Wootton Hall'' is undergoing restoration at the [[Ribble Steam Railway]] with work currently focusing on the engine's tender, 5952 ''Cogan Hall'' is under cosmetic restoration at [[Tyseley Locomotive Works]], with a small number of parts being used in the construction of [[GWR 6800 Class 6880 Betton Grange|6880 ''Betton Grange'']] and 5967 ''Bickmarsh Hall'' is undergoing restoration at the [[Northampton & Lamport Railway]].

{|class="wikitable"
!Number
!Name
!Image
!Built
!Withdrawn 
!Service life
!Tender fitted
!Owner
!Base
!Status
!Livery
!Oil fired
!Mainline certified
!Notes
|-
|align=center|[[GWR 4900 Class 4920 Dumbleton Hall|4920]]
|''[[Dumbleton Hall]]''
|[[File:GWR 4920 Dumbleton Hall at Buckfastleigh.jpg|150px]]
|align=center|Mar 1929
|align=center|Dec 1965
|align=center|36 Years, 9 Months
|align=center|Collett
|align=center|[[West Coast Railways]]
|align=center|[[Warner Bros. Studio Tours#Warner Bros. Studio Tour Tokyo – The Making of Harry Potter|Warner Brothers Studio Tours]], [[Tokyo]]
|align=center|Static Display
|align=center|Hogwarts Railways Crimson, Hogwarts Railways Crest
|align=center|No
|align=center|No
|align=center|Operational 1992-1999<ref>{{cite magazine |title=Dumbleton Hall fades into retirement |magazine=The Railway Magazine |issue=1185 |date=January 2000 |page=49 }}</ref> Sold from SDR to new owner in December 2020.<ref>{{cite magazine |url=https://www.railadvent.co.uk/2020/12/new-year-new-home-for-steam-locomotive-4920-dumbleton-hall.html |title=New Year, New Home for steam locomotive 4920 Dumbleton Hall |magazine=Rail Advent |first=Michael |last=Holden |date=21 December 2020 }}</ref>

Following cosmetic makeover at [[Carnforth MPD]], including repaint into Hogwarts Railways Crimson, was exported from [[Port of Southampton|Southampton]] to Tokyo, [[Japan]] in December 2021.<ref>{{cite magazine |title=Dumbleton Hall for new Harry Potter Japan attraction |magazine=The Railway Magazine |issue=1450 |date=January 2022 |page=7}}</ref>

On long-term loan to [[Warner Bros.]]<ref>{{Cite web|url=https://www.steamlocomotive.info/nloconoteshow.cfm?which=4969|title=Steam Locomotive Information|website=www.steamlocomotive.info|access-date=27 April 2022|archive-date=8 August 2024|archive-url=https://web.archive.org/web/20240808105304/https://www.steamlocomotive.info/nloconoteshow.cfm?which=4969|url-status=live}}</ref>
|-
|align=center|[[GWR 4900 Class 4930 Hagley Hall|4930]]
|''[[Hagley Hall]]''
|[[File:GWR 4900 Class 4930 Hagley Hall.jpg|150px]]
|align=center|May 1929
|align=center|Dec 1963
|align=center|34 Years, 7 Months
|align=center|Collett
|align=center|[[Severn Valley Railway]]
|align=center|Severn Valley Railway
|align=center|Operational
|align=center|GWR Lined Green, Shirtbutton Logo
|align=center|No
|align=center|No
|align=center|Hauled its inaugural passenger train on 9 September 2022 following completion of running in period.<ref>{{Cite web|url=https://www.railadvent.co.uk/2022/09/severn-valley-railway-based-steam-locomotive-4930-hagley-hall-returns-to-steam-after-30-years.html|title=Severn Valley Railway based steam locomotive 4930 Hagley Hall returns to steam after 30 years|date=5 July 2023|access-date=11 September 2022|archive-date=11 September 2022|archive-url=https://web.archive.org/web/20220911170753/https://www.railadvent.co.uk/2022/09/severn-valley-railway-based-steam-locomotive-4930-hagley-hall-returns-to-steam-after-30-years.html|url-status=live}}</ref>
|-
|align=center|[[GWR 4900 Class 4936 Kinlet Hall|4936]]
|''[[Kinlet Hall]]''
|[[File:Kinlet Hall (8130668488).jpg|150px]]
|align=center|Jun 1929
|align=center|Jan 1964
|align=center|34 Years, 7 Months
|align=center|Collett
|align=center|[[West Somerset Railway]]
|align=center|[[Tyseley Locomotive Works]].
|align=center|Undergoing overhaul
|align=center|BR Lined Green, Late Crest (on completion)
|align=center|No
|align=center|No (to be certified)
|align=center|Undergoing mainline standard overhaul.<ref>{{cite magazine |title=4936 set for comeback in 2023 |magazine=Heritage Railway Magazine |issue=301 |date=December 2022 |page=60}}</ref>{{As of?|date=August 2024}}
|-
|align=center|[[GWR 4900 Class 4942 Maindy Hall|4942]]
|''Maindy Hall''
|[[File:GWR Hall class 4-6-0 No 4942 Maindy Hall at Didcot.jpg|150px]]
|align=center|Jul 1929
|align=center|Dec 1963
|align=center|34 Years, 5 Months
|align=center|Churchward
|align=center|[[Didcot Railway Centre]]
|align=center|Didcot Railway Centre
|align=center|Operational
|align=center|GWR Lined Green, Great Western Lettering
|align=center|No
|align=center|No
|align=center|Rebuilt into [[GWR 2900 Class]] no [[GWR 2900 Class 2999 Lady of Legend|2999 ''Lady of Legend'']]
|-
|align=center|[[GWR 4900 Class 4953 Pitchford Hall|4953]]
|''[[Pitchford Hall]]''
|[[File:GWR 4953 Pitchford Hall Epping Ongar Railway.jpg|150px]]
|align=center|Aug 1929
|align=center|May 1963
|align=center|33 Years, 9 Months
|align=center|Collett
|align=center|[[Epping Ongar Railway]]
|align=center|Epping Ongar Railway
|align=center|Operational
|align=center|BR Lined Black, Early Emblem
|align=center|No
|align=center|No
|align=center|Returned to traffic in December 2019.
|-
|align=center|[[GWR 4900 Class 4965 Rood Ashton Hall|4965]]
|''[[Rood Ashton House|Rood Ashton Hall]]''
|[[File:Rood Ashton Hall Tyseley.jpg|150px]]
|align=center|Nov 1930
|align=center|Mar 1962
|align=center|32 Years, 4 Months
|align=center|Churchward
|align=center|[[Vintage Trains]] 
|align=center|Tyseley Locomotive Works 
|align=center|Awaiting overhaul
|align=center|GWR Lined Green, Great Western Lettering (on completion)
|align=center|Yes (to be converted during overhaul)
<ref name="“Tyseley”"/><ref name=“Oil4965”/>
|align=center|No (to be certified)
|align=center|Used parts from 4983 ''Albert Hall'', and was named ''Albert Hall'' on one side on entering service in preservation<ref>{{cite magazine |title=Albert Hall is really Rood Ashton Hall |magazine=The Railway Magazine |issue=1163 |date=March 1998 |page=9 }}</ref>
Will be converted to [[GWR oil burning steam locomotives|oil-firing]] during the engine's next overhaul which will commence in March 2024.
<ref name=“Tyseley”/><ref name=“Oil4965”/>{{Needs update|date=August 2024}}
|-
|align=center|[[GWR 4900 Class 4979 Wootton Hall|4979]]
|''[[Wootton Wawen#Wootton Hall|Wootton Hall]]''
|[[File:GWR 4979 Wootton Hall awaiting restoration.JPG|150px]]
|align=center|Feb 1930
|align=center|Dec 1963
|align=center|33 Years, 10 Months
|align=center|Collett
|align=center|Furness Railway Trust
|align=center|[[Ribble Steam Railway]]
|align=center|Undergoing restoration
|align=center|
|align=center|No
|align=center|No
|align=center|
|-
|align=center|[[GWR 4900 Class 5900 Hinderton Hall|5900]]
|''[[Hinderton Hall]]''
|[[File:DSCN2341-5900-hinderton-hall_1200x900.jpg|150px]]
|align=center|Mar 1931
|align=center|Dec 1963
|align=center|32 Years, 9 Months
|align=center|Collett
|align=center|[[Didcot Railway Centre]]
|align=center|Didcot Railway Centre
|align=center|Static display
|align=center|GWR Lined Green, Great Western Lettering
|align=center|No
|align=center|No
|align=center|
|-
|align=center|[[GWR 4900 Class 5952 Cogan Hall|5952]]
|''Cogan Hall''
|[[File:5952 Cogan Hall.JPG|150px]]
|align=center|Dec 1935
|align=center|Jun 1964
|align=center|28 Years, 6 Months
|align=center|N/A
|align=center|Betton Grange Society
|align=center|Tyseley Locomotive Works
|align=center|Stored
|align=center|
|align=center|No
|align=center|No
|align=center|Tender and other minor parts used on [[GWR 6800 Class 6880 Betton Grange|6880 ''Betton Grange'']]. 
Undergoing cosmetic restoration for static display at Tyseley Loco Works, full restoration to commence following the completion of 6880.
|-
|align=center|[[GWR 4900 Class 5967 Bickmarsh Hall|5967]]
|''Bickmarsh Hall''
|[[File:5967 Bickmarsh Hall at NLR.jpg|150px]]
|align=center|Mar 1937
|align=center|Jun 1964
|align=center|27 Years, 3 Months
|align=center|N/A
|align=center|Northampton & Lamport Railway
|align=center|[[Northampton & Lamport Railway]]
|align=center|Under restoration
|align=center|
|align=center|No
|align=center|No
|align=center|
|-
|align=center|[[GWR 4900 Class 5972 Olton Hall|5972]]
|''Olton Hall''
|[[File:GWR 'Hall' 5972 'Olton Hall' at Doncaster Works.JPG|150px]]
|align=center|Apr 1937
|align=center|Dec 1963
|align=center|26 Years, 8 Months
|align=center|Collett
|align=center|West Coast Railways
|align=center|[[Warner Bros. Studio Tour London - The Making of Harry Potter|Warner Brothers Studio Tour]], [[London]]
|align=center|Static display
|align=center|Hogwarts Railways Crimson, Hogwarts Railways Crest
|align=center|No
|align=center|No
|align=center|Renamed ''[[Hogwarts Castle]]'' for use in the [[Harry Potter (film series)|''Harry Potter'' films]]. Currently on lease from [[West Coast Railways]] to [[Warner Brothers]].
|}

== See also ==
* [[List of GWR standard classes with two outside cylinders]]

==References==
{{Reflist}}
*{{RCTS-LocosGWR-1|year=1968}}
*{{RCTS-LocosGWR-8 |edition=2nd |page=H29 }}
*{{cite book |title=Collett & Hawksworth Locomotives, A Pictorial History |first=Brian |last=Haresnape |publisher=Ian Allan Ltd |year=1978 |isbn=0-7110-0869-8}}
*{{Whitehurst GW Engines from 1940|pages=42–44, 53–55, 62–63. 103, 144}}

== External links ==
{{Commons category|GWR 4900 Class}}
*[http://www.greatwestern.org.uk/m_in_hal.htm Great Western archives - Hall class]
*[http://www.4930hagleyhall.co.uk Friends of Locomotive 4930 Hagley Hall]
*[https://web.archive.org/web/20190406134147/http://gwrkinlethallgroup.moonfruit.com/ 4936 Kinlet Hall Group]
*[http://www.furnessrailwaytrust.org.uk/4979.htm The Furness Railway Trust's Wooton Hall webpage]

{{GWR Hall Class}}
{{GWR Locomotives}}
{{Authority control}}

[[Category:GWR 4900 Class| ]]
[[Category:Great Western Railway locomotives|4900]]
[[Category:4-6-0 locomotives]]
[[Category:Railway locomotives introduced in 1928]]
[[Category:Standard gauge steam locomotives of Great Britain]]
[[Category:2′C h2 locomotives]]