8Jones, Carleton. Temples of Stone: Exploring the Megalithic Tombs of Ireland. Cork: Collins, 2007. 237-38.
The Creevykeel excavator observed "Traces of iron smelting have been observed at similar sites in Ireland, and the analogy of the Berkshire long barrow called Wayland's Smithy leads one to speculate on the association in early times between tombs of a forgotten epoch and the magic craft of the smith." (Hencken, H. O'Neill. "A Long Cairn at Creevykeel, Co. Sligo." The Journal of the Royal Society of Antiquaries of Ireland 2 (1939): 54.)
In 1937 Arensberg wrote: "So, when the good people strike, the countryman who still follows the old folklore is not unprepared. If butter fails to come, for instance, he can take a hearth-coal and sear the bottom of the churn. He can apply iron in a variety of forms; for 'there is great power in iron.'" (Arensberg, Conrad M. The Irish Countryman: An Anthropological Study. New York: Peter Smith, 1937. 196.)