Joseph Warren Zambra
1822 Born in Saffron Walden, Essex, son of Joseph Caesar Zambra and his wife Phillis[1]
Zambra had worked for his father as a glass-blower and had been in partnership with John Tagliabue at 11 Brooke Street for four years before joining Negretti.
1847 Married Sara Sophia Potts in West London[2]
1847 Birth of son Joseph Caesar Zambra
1850 Left the partnership with John Tagliabue as barometer makers and went into partnership with Henry Negretti
1851 Optician, etc (master), living in Grays Inn Lane, London with Sarah S Zambra 26, Marcus W Zambra 2, Sarah P Zambra 4 Mo[3]
1867 Death of his first wife
1869 An optician and widower, married Sarah Tongue in Islington[4]
1871 An optician living in Islington with Sarah Zambra 46, Sarah P Zambra 20, Joseph C Zambra 23, optician, and Marcus W Zambra 22, optician[5]
1881 Optician and general merchant, living in Islington with Sarah[6]
1892 Left the partnership of Negretti and Zambra
1897 Died in South Hampstead[7]