Dursley and Midland Junction Railway

The branch line continued in use as a minor branch line of the Midland Railway. There were seven passenger train journeys each way Monday to Saturday in 1922. In the same year the Midland Railway was a constituent of the new London, Midland and Scottish Railway following the Railways Act 1921.

The very limited goods traffic originating on the line was enhanced by the development at Dursley station of the works of R A Lister and Company, manufacturers of agricultural machinery and later, internal combustion engines. There was a gas works at Cam, operated by the Dursley Gas Company from 1835, closing in 1948. In addition, there was a private siding for the large Cam Woollen Mill (closed 1959), and nearer the main line Daniels Mill (closed 1964) and Workman's Mill (closed 1959).

The development of road services for passengers and goods led to the inevitable decline of the branch line in the 1930s, and after nationalisation of the railways in 1948 the losses on the passenger business were considered to be unsupportable; the passenger service was discontinued on 10 September 1962. The line had been transferred to the Western Region of British Railways (from the London Midland Region) in 1957, resulting in a dramatic modernisation of the traction, as post-war pannier tanks took over from 19th century Midland Railway engine power. Goods trains continued running, chiefly in connection with Lister's business, but the branch was totally closed on 13 July 1970, the public goods service having been discontinued at Dursley on 28 June 1968.

When the branch closed to passengers in 1962, the junction station on the main line, Coaley, remained open for the time being, but it too closed in 1965.

For some time, there was no local passenger service on the main line at all, but in the 1990s certain stations were revived, and a new station, Cam and Dursley railway station, was opened a short distance north of the former Coaley, on 29 May 1994. It is still in use.