Steam locomotives of Ireland - Wikipedia
https://en.wikipedia.org/wiki/Steam_locomotives_of_Ireland
The Ulster Transport Authority, which controlled the railways in Northern Ireland between 1948 and 1966, replaced steam haulage on passenger trains with diesel multiple units, but had only two diesel shunting locomotives, which meant a continued role for steam on freight work. Twenty-three locomotives passed to Northern Ireland Railways in 1967, but most were not used again and all had been withdrawn by 1971.
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