[pre65]

Tiverton DL could be down loop, seems it's 6 mins after Tiverton Parkway.

This tit bit might help.

Tiverton Junction
A station, known as "Tiverton Road" was opened with the railway to Exeter on 1 May 1844, although it was actually located at Willand which was the nearest that the railway came to Tiverton. It was renamed "Tiverton Junction" on 12 June 1848 when Tiverton railway station, at the end of a branch from the Junction station, opened. A second branch, the Culm Valley Light Railway, opened on 29 May 1876.
The station was widened to four tracks in 1932; two new platforms being built facing the new loop lines but the centre tracks were only used for non-stopping trains. Goods traffic was withdrawn on 8 May 1967, the Tiverton branch closed on 5 June 1967. The Culm Valley line had closed to passengers on 7 September 1963, although the line remained in use for goods trains until 31 October 1975.
The Junction station continued to be served by a couple of trains each day for about twenty years but was then closed on 11 May 1986[5] to be replaced by the better sited Tiverton Parkway. The location is now known as "Tiverton Loops" and platforms can still be seen alongside the now extended loops; engineers use the remaining sidings on the down side.

Seems it was at Willand, try Google maps ariel view.