Claim: John Blackwall was a British naturalist born in January 20, 1790 in Manchester, a city and metropolitan borough in North West England.
Evidence: John Blackwall (20 January 1790 – 11 May 1881) was a British naturalist with a particular interest in spiders. Blackwall was born in Manchester on 20 January 1790. Manchester (/ˈmæntʃɪstər, -tʃɛs-/) is a city and metropolitan borough in Greater Manchester, England. North West England