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John Spiller (1833–1921), chemist and inventor of photographic techniques
1833 born in Holborn, London, on 20 June, son of John Horatio Spiller, an architect.
Educated at the Royal College of Chemistry and stayed on after his course as a junior assistant to Professor A. W. Hoffman. He became a close friend of William Crookes, with whom he had a common interest in photography, experimenting with the calotype process from about 1850.
c.1853 Assisted Dr John Percy at the Royal School of Mines in analysing British iron ores.
1854 Crookes and Spiller published their first paper on photography
1856 Appointed as an assistant chemist at the Woolwich Arsenal.
1861 he founded a department at Woolwich to teach the new field of photography
1869 Became secretary of the Photographic Society of London
1881 Consulting analytical chemist, living in Islington with his wife Emma 29, Ethel Mary Spiller 24, Arnold John Spiller 18, Claude Pritchard Spiller 11
c.1888 retired from the company.
1891 Retired War Department chemist
1911 Retired War Office chemist, living in Islington, with his wife Emma 59, and children Claude Pritchard Spiller 41, and Leonard Spiller 21
1921 Died in Islington.