A collection of newspapers relating to the diverse history of the river can be found in the ProQuest News and Newspapers Database which can be accessed here. The database includes articles from The Guardian, The Observer and the New York Times among others.
The European magazine, and London review; London Vol. 41, (Mar 1802): 208-208.
The Observer (1791- 1900); London (UK) 30 Dec 1833: 4.
The Manchester Guardian (1901-1959); Manchester (UK) [Manchester (UK)]10 Mar 1933: 20.