In 1841 Cordelia Trevillian, aged about 50, born in the county, and husband Francis Trevillian, aged about 50, born in the county, copper miner, were in Camborne Hills, Camborne Cornwall. With them were children John (25), miner, William (20), miner, Joseph (20), miner, James (15), miner, Samuel (15), miner, Thomas (12), miner's boy, [and grandchildren] Mary (10) and Joseph (9).
Cordelia wife of Francis Trevillian was co-executrix of the Will of her brother William Craze of Camborne Hill (proved 1845).
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Cordelia Trevillion wife of Francis Trevillion, miner, died aged 66 years as a result of an affection of the brain, Thos. Trevillion of Soddy's Row, Camborne, in attendance.