¹⁴¹Petrie, George. "On the History and Antiquities of Tara Hill." The Transactions of the Royal Irish Academy, vol. 18, 1839, p. 141.
"The Grave of Caelchu and his Rath are near the northern head of Long na m-ban. This Caelchu, the son of Loarn, son of Ruadh, son of Cas, was one of the Eoganachts of Cashel, and the most distinguished of all the men of Munster for wisdom; and from him the chiefs of Ros-Teamrach and the tribe of Tuath-Cis, at Temur, are descended."

"Proceeding now to the northern extremity of the Hall, both the prose and verse place here the Rath, and the Leacht, or Grave, of Caelchu. These are described in the prose as being near the northern head of Long na m-ban, and the verse states that the Grave was to its north-east, and adds that it was a heap of stones; but there is every reason to believe that it should have been written north-west, as the Irish transcribers frequently mistake the word raip for nap. Both authorities state that this Caelchu was the great-grandson of Cormac Cas, and was one of the Eoganachts of Cashel, and the most distinguished of all the men of Munster for wisdom, and that from him the chiefs of dos Teamrach and the tribe of Tuath-cis at Temur were descended. He was cotemporary with the monarch Cormac Mac Art, and his son Cairbre Liffeachair. This Rath and Leach still remain, and the measurements of the former will be seen in the section, taken from west to east, and on a scale of 60 f. to 1 inch." (p. 215)