I can't help but this Q is likely to be seen by a wider audience if you post in the UK Prototype Questions area on rmweb

The last ones ended up at Monument Lane. One of their jobs was New St pilot, where they appeared with Coal Tanks and late survivors of the 2-4-2 tanks. Another place where they sometimes worked was Dudley Port to Dudley. 

The 2-4-2T variety were common at Ryecroft on the South Staffs line services right up to nationalisation.