Analysis of information sources in references of the Wikipedia article "Chesten Marchant" in Portuguese language version.
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.
It is recorded by Dr. Borlase that Cheston Marchant, who died at Gwithian in 1676 aged 164 (!), could speak nothing but Cornish.
