Cholera cases 10-14 in 1848 occurred in White Hart Court (in red), shown in the 1818 map as situated directly by the River Thames.  The Court inhabitants obtained drinking water from buckets dipped into the often-polluted River Thames.

Source: Cary, J. Cary's New and Accurate Plan of London and Westminster, the Borough of Southwark and parts adjacent, viz. Kensington, Chelsea, Islington, Hackney, Walworth, Newington, etc.,  Printed for John Cary, Engraver and Map Seller, No. 181, near Norfolk Street, Strand, London, 1818.