In 1816 Grace Trezona was named as a beneficiary of her father's will.
In 1818 Grace was named as a beneficiary of her mother's will.
Grace was lodging with her sister Catherine at Pengegon Hill, Camborne, in 1851.
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Grace Trezona of Pengigan died aged 82 years (burial record).
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At Camborne, on the 13th inst., Miss Grace Trezona, aged 82 years.
The West Briton and Cornwall Advertiser, Friday, 19 Nov 1858, p. 8