The file consists of correspondence between the Engineer to the Humber Conservancy Board (Arthur Ernest Butterfield until 1946, then Ralph John Hindmarsh) and the owners of wrecks in the River Trent. This includes correspondence connected with work undertaken on the wrecks by their owners. Wrecks covered in greater detail includes the wrecks of the keels ‘Ruth’ and ‘Mizpah’.

There is also correspondence regarding the collision of barge No. 12, owned by the Hull and Fossdyke Lighterage Company Limited, with Gainsborough Stone Bridge. Discussion focuses on a dispute over the lighting of the bridge.