Some informative websites about the railway scene in and around Gloucestershire and surrounding counties:
https://tuffleyjunction.co.uk/ Transports of Delight - Last Steam at Tuffley Junction, Gloucester. Plenty of personal observations of trains here in 1950s and 1960s.
http://www.gsia.org.uk/reprints/ The newsletters and Journals of the Gloucestershire Society for Industrial Archaeology from 1964 to 2012 include some articles about historical aspects of Gloucestershire's railways.
http://www.bristolsteam64.co.uk Recorded steam workings in Bristol in 1964.
www.bristol-rail.co.uk General chat about the railways around Bristol then and now.
http://glostransporthistory.visit-gloucestershire.co.uk Celebrating transport and Gloucestershire.
http://www.gwrarchive.org Restoration & Archiving Trust, based at Toddington, with information and great photos in the area.
www.miac.org.uk Lots of information about Railways in Worcestershire.
www.worcesterlocomotivesociety.co.uk More about railways around Worcester.
www.warwickshirerailways.com An extensive record of Warwickshire's railways from 1838 to 1968.
www.swindonsotherrailway.co.uk Large amounts of information, pictures and memories of the Midland & South Western Junction Railway.
www.michaelclemensrailways.co.uk Very informative site about railways in the area, including copies of many Working Time Tables from the 1950s and 1960s.
http://www.sdjr.net Brief history of the Somerset & Dorset Railway, including train services and locos which worked over the line.
http://www.fairfordbranch.co.uk/ Does what it says, Martin Loader's excellent look at the Fairford branch in some detail.
http://www.bosci.net/lowv/LOWV%20history%20railways.htm has a history of the Hereford - Gloucester line, with pictures.
http://www.derbysulzers.com is a real labour of love, with details of Sulzer engined diesels on BR and worldwide, well worth a look even if you are a dyed-in-the-wool steam man
http://www.geograph.org.uk/profile/44502 is where you will find many photos of the area taken by Ben Brooksbank, who has generously made his lifetime's work of railway pictures freely available.
AND a plug for the railway with which I am involved:
http://www.toddington-narrow-gauge.co.uk - keeping steam alive in Gloucestershire and well worth a ride when you visit the Gloucestershire Warwickshire Railway.