Brick Field is a place-name of the most literal kind, suggesting that at some point this ground was the site of brick manufacture, a trade that was far more widespread in rural Ireland than its current near-invisibility would suggest.

Brick-making in Ireland was typically a localised affair, tied to the presence of suitable clay deposits and the demands of nearby construction. Small-scale brick fields operated across many counties from the seventeenth century onward, often supplying a single estate, town, or building project before falling out of use entirely. The survival of the name in a townland like Grange is frequently all that remains after the physical evidence has been ploughed away or overgrown. Grange as a place-name is itself suggestive, deriving from the Anglo-Norman and medieval practice of designating outlying farm buildings belonging to a monastery or large estate, which points to a landscape with a long history of organised land use before any brick was ever fired here.