William Henry Harrowin (1827/8–1902)
Ironmonger. Of Anne Harrowin & Son, ironmongers, in Kingsland High Street, London. Made an ear trumpet for Syms Covington in 1860.
Census returns of England and Wales 1861 (The National Archives: Public Record Office RG9/154/4/2)
England & Wales, national probate calendar (index of wills and administrations), 1858–1966 (Ancestry.com, accessed 11 April 2016)
Post Office London directory 1860.