1861
likewise 17 Pitt St, children as above except Joseph Jr not present, plus:
William aged 8 born Southwark
Martha aged 6 born Southwark
James aged 3 born Southwark
Thomas aged 1 born Southwark
According to various articles I've read, Joseph senior formed the fireworks company in 1837. 'Fireworks' magazine has information on the history of the company (issues 28, 29 and 48 - back issues are available). The company was eventually sold in 2005 I believe (they had been based in Dartford for many years), although the new company is using the Wells name for some products, as is a Wells Firework Company in South Africa, which is apparently being run by a descendent.