William son of William Trevithick of Chilsworthy, miner, and Elizabeth (baptismal record)
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In 1851 William Trevithick, aged 38, born in Calstock Cornwall, copper miner, and wife Susan Trevithick, aged 36, born in Tavistock Devon, were living in Oakletor, Calstock. With them were children Mary (16) of St Gennis, William (14) of St. Teath, copper miner, Susan (12) of Stoke Climsland, Stephen (8) of South Hill, Jane (6) of Stoke Climsland, James (4) of Lezant, Emlah (2) of Lezant, and Selena (3 mo) of Calstock.
In 1861 William Trevithick, aged 49, born in Calstock, miner (sick), and wife Susan Trevithick, aged 46, born in Tavistock Devon, were living in Okel Tor no. 7, Calstock. With them were children Susan (22) of Stoke Climsland, copper mine girl, Stephen (18) of South Hill, copper miner, Jane (16) of Stoke Climsland, copper mine girl, James (14) of Lezant, copper miner, Embla (12) of Calstock, copper mine girl, Selina (10) of Calstock, scholar, Samuel T. (8) of Calstock, scholar, Thursa (8) of Calstock, scholar, Richard (6) of Calstock, scholar, Joseph (4) of Calstock, scholar, and Eliza (2) of Calstock.
In 1871 William Trevithick, aged 59, born in Calstock, garden labourer, and wife Susan Trevithick, aged 56, born in Tavistock Devon, were living in Okel Tor, Calstock. With them were children Emily (22) of Lezant, tin dresser, and born in Calstock: Selina (20), tin dresser, Samuel T. (18), tin dresser, Tharsa (18), tin dresser, Richard (16), tin dresser, and Eliza (12), scholar.
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William Trevithick of Okel Tor died aged 61 years (burial record).