In 1881 Elizabeth Dunstan, aged 29, born in Camborne Cornwall, machinist at [...] factory, was with her widowed mother at 28 Union St., Camborne.
In 1891 Elizabeth Trethowan, aged 38, born in Camborne, and husband Nicholas Trethowan, aged 33, born in Camborne, agent for safety fuse [factory], were living in Tolvadden Rd., Camborne. With them were son Hedly H. (1 month) of Camborne, Nicholas's mother Catherine J. (57) of Camborne, widow.
In 1901 Elizabeth J. Trethowan, aged 48, born in Camborne, and husband Nicholas Trethowan, aged 43, born in Camborne, agent for safety fuse co., were living in Tolgarrick Rd., Illogan, Cornwall. With them were children (born in Camborne) Hedley H. (10) and Hilda M. (8). Boarding was (Elizabeth's nephew) Richard Banfield (31) of Camborne, tin miner.
In 1911 Elizth. Jane Trethowan, aged 59, born in Camborne (mother of 3 children, 1 deceased), and husband of 23 years Nicholas Trethowan, aged 53, born in Camborne, salesman, safety fuse co., were living in Tolgarrick Rd., Tuckingmill. With them were children (born in Camborne) Hedley Herbert (20), engineering fitter, Hilda May (18), shop assistant (outfitting), and mother-in-law Catharine Jane Trethowan (77) of Camborne, widow, private means.
In 1921 Elizth. Jane Trethowan, aged 70 years 2 months, born in Camborne, and husband Nicholas Trethowan, aged 64 years 2 months, born in Camborne, safety fuse p----- & solderer, were living in Dolgarrick Road, Tuckingmill. With them were daughter Hilda May Wallace (28y 7m) of Tuckingmill, married, and her husband Albert Wallace (39) of . . . . . . . near St. Ives, electric tram driver.
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Elizabeth Jane Trethowan died aged 76 years. 3
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TRETHOWAN.July 7, at 8, Tolgarrick-road, Tuckingmill, Elizabeth Jane, wife of Mr. N. Trethowan.
The Cornishman and Cornish Telegraph, Wednesday, 13 Jul 1927, p. 4
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Elizabeth Jane Trethowan of 8 Tolgarrick-road Tuckingmill Camborne Cornwall (wife of Nicholas Trethowan) died 7 July 1927. Administration Bodmin granted 22 July to the said Nicholas Trethowan, commercial traveller. Effects £147 2s. 2d. 4