Dorothea Weber was a 190 GRT three-masted schooner that was built in 1922 as the barge Lucy by J Oelkers, Hamburg.

She was seized by the Allies in May 1945 at Guernsey, passed to the Ministry of War Transport (MoWT) and renamed Empire Cononley.

The engine was built by Linke Hofmann Busch Werke AG, Breslau.

Her port of registry was Hamburg and the Code Letters DNMO were allocated.

The Code Letters GLKY and United Kingdom Official Number 180671 were allocated.

Although she was refloated, she capsized and sank 4 nautical miles (7.4 km) off the Inner Dowsing Light Vessel.