Sarah Dazley (c. 1819 – 5 August 1843), later known as The Potton Poisoner, was an English murderer convicted of the poisoning of her husband William Dazley. She was suspected of, but not tried for, the poisoning of her first husband Simeon Mead and their son Jonah Mead in 1840. The murder of William Dazley took place in Wrestlingworth, England.
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