Franz Louis Julius (Franz) Thimm (1820–89)
Prussian-born bookseller and publisher. With premises at 3 Brook Street, Grosvenor Square, London.
Census returns of England and Wales 1861 (The National Archives: Public Record Office RG9/40/76/24)
England & Wales, national probate calendar (index of wills and administrations), 1858–1966, 1973–95 (Ancestry.com, accessed 23 October 2018)
Post Office London directory 1863.
Prussian provinces, selected Lutheran baptisms, marriages, and burials, 1661–1944 (Ancestry.com. accessed 23 October 2018