Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Humber Conservancy > Accounts (Bills of Costs) detailing expenditure in connection with Parliamentary Bills and related matters > Lewin, Gregory and Anderson re. the Board of Trade Commission of Enquiry into the Conservancy of the River Humber under the Humber Conservancy Act, 1905