Vulliamy, Colwyn Edward. Unknown Cornwall. John Lane, 1925, p. 220 [Consulta: 14 agost 2014]. «Cornish people seem to live to great ages, though some of the records of longevity should, perhaps, be treated with a certain reserve. C. S. Gilbert gives a long list of centenarians, and super-centenarians, including a woman named Chester [sic] Marchant who lived in Gwithian, and who, in 1676, according to one Mr. Scawen, reached the astounding age of 164 years.»
