In 1857 John Blight was co-executor of the will of his brother Stephen Blight of Illogan.
In 1861 John Blight, aged 47, born in Illogan Cornwall, unmarried, shop keeper, was living at Grocer's Shop, Illogan, Cornwall. With them were sister Jemima Blight (38) of Illogan, unmarried, assistant, and mother Mary Blight (75) of Illogan, widow, house keeper.
In 1871 John Blight, aged 57, born in Illogan, unmarried, grocer, was in Illogan Highway, Illogan. With him was mother Mary Blight (86) of Illogan, widow.
In May 1878 John Blight of Illogan, farmer, was granted Administration of his late mother's personal estate.
In 1881 John Blight, aged 67, born in Illogan, unmarried, retired grocer, was living in Broad Lane, Illogan. With him was Hannah Mitchell* (37) of Illogan, married, housekeeper, and Hannah's son Thomas Mitchell (10) of Illogan, servant.
* John's niece, daughter of his widowed sister Hannah Jeffery who was living nextdoor.
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John Blight of Broad Lane died aged 77 years (burial record).
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The Will of John Blight late of Broad-lanes in the parish of Illogan in the county of Cornwall, gentleman, who died 24 November 1890 at Illogan, was proved 29 January 1891 at Bodmin by James Jeffery, grocer, the nephew, and William Trevethan, accountant, both of Illogan, the executors. Personal estate £5,903 12s. 2d. 2