found: Historic sites and scenes of England, 1924:t.p. (Great Western Railway Company of England)
found: The Banbury & Cheltenham Direct Railway, 2004:p.60 (absorbed by the Great Western Railway in 1897)
found: Taff Vale miscellany, c1988:text (in 1923 the Taff Vale Railway merged with the Great Western Railway)
found: Didcot to Winchester, 1998:p.[5] (the DNSR [i.e. the Didcot, Newbury and Southampton Railway] was absorbed by the GWR in 1923)
found: The Ely Valley Railway, c2000:p.49 (on 1 July 1903, the EVR was acquired by the Great Western Railway)
found: British Steam Railway Miscellanea WWW site, 31 Mar. 2005:GWR family tree (the GWR absorbed the Culm Valley Light Railway in 1880; followed in 1922 by the Cardiff Railway, Cambrian Railways and Rhymney Railway and in 1923 the Midland & South Western Junction Railway)
found: British Steam Railway Miscellanea WWW site, 6 Sept. 2007:GWR family tree (the Welshpool & Llanfair Light Railway, incorp. 1899, was absorbed into the Great Western Railway in 1923)
found: The Minehead Branch 1848-1971, 2006:jkt. (West Somerset Railway; absorbed by the Great Western Railway in 1922)
found: The Lambourn Valley Railway, c2013:page 18 (in 1905, the LVR ceased to be an independent railway and merged with the GWR)
found: The Bristol & South Wales Union Railway and the New Passage ferry, 2013:p.21 (amalgamated with the Great Western Railway on 1 August 1868)
notfound: Wikipedia, viewed June 19, 2012: Vale of Neath Railway Company (opened Sept. 24, 1851, amalgamated with Great Western Railway on Feb. 1, 1865)