¹¹Hall, Samuel C. Ireland - Its Scenery, Character Etc. Vol. 1. London: How and Parson, 1841. 385.
A similar tale was noted from Co. Kildare: [ relating an 'Old Woman's Story" ] "Near the Seat of Morrice Keating, Esq.,, is a Hill called Moly-Mase, where, as they say, one of the Earls of Kildare was carried by Fairies; and though it is perhaps an hundred Years ago, that he is still alive, as well as his Horse, which is shod with silver; but when those Shoes are worn out, the Earl will return with his usual Health and Vigour, and take ample Possession of the noblest Estate in the Kingdom..." (Chetwood, W. R., and Philip Luckombe. A Tour through Ireland in Several Entertaining Letters: Wherein the Present State of That Kingdom Is Consider'd ... Interspersed with Observations on the Manners, Customs, Antiquities, Curiosities, and Natural History of That Country. London: Printed for J. Roberts, 1748. 233.)
According to local tradition, stories connecting Gearoid Iarla with Loch Gur may have originated in the "webbing of the toes and fingers that are known to be perculiar to the Fitzgeralds." (Quinlan, Michael, ed. The Lough Gur & District Historical Society Journal: Special Folklore Edition 7 (1991): 5.)