John Milton (1792/3–1874)
Tea dealer and grocer. At 10 Great Marylebone Street West, London, from at least 1841.
Census returns of England and Wales 1841 (The National Archives: Public Record Office HO107/676/6/35/12), 1861 (RG9/71/7/9)
England & Wales, national probate calendar (index of wills and administrations), 1858–1966, 1973–95 (Ancestry.com, accessed 16 August 2018)
Post Office London directory 1861