A reel associated with Tommy Peoples and also called "Ril a' Sean Nós" ("The Old Style Reel") in Donegal.
This tune appears in O'Neill's Dance Music of Ireland (1001 Gems) (1907) and was popularized by the Bothy Band, who recorded a slow, elaborate setting in 1977; Mitchelstown is in County Cork near the boundaries of Limerick and Tipperary.
The tune was popularized by Mary Bergin on her classic tin whistle album Feadoga Stain (1979). John Skelton has suggested the title may refer to Irish construction workers in London.