I am fairly au fait with the service pattern on the Hope Valley route between Sheffield and Manchester from May 1979 onwards: from that date, most Manchester-Sheffield expresses continued to either Hull or Cleethorpes, and were worked by Class 123/124 "Trans-Pennine" DMUs until May 1984, then Class 31s.
That service pattern continued until May 1986, when the Hazel Grove Chord opened and most expresses on the route were Sheffield-Liverpools (which could serve Stockport for the first time), with the odd through train such as Cambridge-Blackpool or Great Yarmouth-Liverpool. These were still loco (mostly Class 31) hauled until May 1988, when the Class 156 Super Sprinters entered service and the new Liverpool-Norwich service started (which has operated ever since, albeit mostly Class 158s since about 1991/92).
But what of the service pattern between 1970 (when the Woodhead route closed to passengers) and 1979? I had always thought that in those days most Sheffield-Manchester expresses ran only between Sheffield and Manchester, and were worked by conventional DMUs such as Class 101s and 104s (although I believe the 123s started to be used on the route from about 1977 onwards). However, I have a 1972 Sheffield bus timetable book which also contains rail services, and that seems to show most Sheffield-Manchester expresses as continuing to Liverpool.
That service pattern continued until May 1986, when the Hazel Grove Chord opened and most expresses on the route were Sheffield-Liverpools (which could serve Stockport for the first time), with the odd through train such as Cambridge-Blackpool or Great Yarmouth-Liverpool. These were still loco (mostly Class 31) hauled until May 1988, when the Class 156 Super Sprinters entered service and the new Liverpool-Norwich service started (which has operated ever since, albeit mostly Class 158s since about 1991/92).
But what of the service pattern between 1970 (when the Woodhead route closed to passengers) and 1979? I had always thought that in those days most Sheffield-Manchester expresses ran only between Sheffield and Manchester, and were worked by conventional DMUs such as Class 101s and 104s (although I believe the 123s started to be used on the route from about 1977 onwards). However, I have a 1972 Sheffield bus timetable book which also contains rail services, and that seems to show most Sheffield-Manchester expresses as continuing to Liverpool.