In 1825 Mary Blackman received £500 from her late father's Will.
Writing his Will in March 1836 Benjamin Blackman of Hooe, gent., confirms the bequest made to his sister Mary Blackman, spinster, in their late father's Will.
At the time of the 1851 England Census Mary Blackman, aged 74, born in Hooe Sussex, unmarried, was housekeeping for her nephew Robert Horton, farmer & grazier, in Pelsham Farm, Peasmarsh Sussex.
At the time of the 1861 England Census Mary Blackman, aged 84, born in Hooe Sussex, unmarried, was with her nephew Robert Horton, farmer, in Pelsham Farm, Peasmarsh Sussex.
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Mary Blackman of Peasmarsh died aged 85 years (burial record).
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The Will with a codicil of Mary Blackman late of Peasmarsh in the county of Sussex, spinster, who died 11 April 1862 at Peasmarsh aforesaid, was proved 5 September at the Principal Registry by the oaths of Robert Horton of Peasmarsh aforesaid, farmer, and Frederick Horton of Peasmarsh aforesaid, gentleman, the nephews and the executors. Effects under £5,000. 2