John Frederick Newman (1783/4–1860)
Instrument maker. Of 122 Regent Street, London, 1827–60. A leading maker of barometers.
Census returns of England and Wales 1851 (The National Archives: Public Record Office HO107/1497/108/64)
England & Wales, national probate calendar (index of wills and administrations), 1858–1966, 1973–95 (Ancestry.co.uk, accessed 20 September 2018)
Goodison 1969
Post Office London directory 1839.