1
Está inserto en La Armada invencible, tomo II, pág. 337. Madrid, 1885.
2
Carlow Past and Present, A Brochure Containing short historical notes and miscellaneous gleanings of the town and County of Carlow. Carlow, Printed at the Nationalist and Leicester Times Office, 1888, 8.º, 138 páginas. «Duro (dice), may have no knowledge of the historical importance of his discovery in the Academia,» pág. 128.
3
The Honorable Earl of Ducie. An episode of the Armada. Nineteenth Century, London set. 1885.