Liverpool's docks were Britain's western lifeline. During the first eight nights of May 1941, Merseyside was bombed almost continuously. Imperial War Museums records roughly 1,900 deaths, 1,450 serious injuries and 70,000 people made homeless in those raids; transport routes were blocked and around half the dock berths were put out of action.
Historic England records that Park Lane Goods Station, at the dock end of the Wapping route, was extensively damaged but continued operating. The railway did not vanish during the Blitz: bomb damage, emergency repair, freight movement and everyday work existed together.
The National Railway Museum catalogue identifies a three-hour interview with railwayman Edward Horne covering Edge Hill in 1943–46, Gridiron practice, wartime damage, Park Sidings, freight and troop trains. The archive has not yet quoted that recording: it must be heard or transcribed first.