Journal de Pierris Casalivetery, transcribed and published by Jean de Jaurgain in the Archives historiques de la Gascogne, 1909, cited by Manex Goyhenetche in his Histoire générale du Pays basque III: Évolution économique et sociale du xvie au xviiie siècle, Vol. 3, Donostia/Bayonne, Elkarlanean, 2001, 411 p. (ISBN8483317443 and 9788483317440, OCLC466971263), p. 24. The same work by Manex Goyhenetche indicated on page 284 that there was an average population of 5.5 persons per fire.