SS Cushag was sold once more, this time to a London broker, from whom she was purchased by the Isle of Man Steam Packet Company in May 1920, at a cost of £22,000 (equivalent to £). Small and drawing so little water, she was mostly used for cargo trade in the Island's smaller ports - Port St Mary, Peel, Laxey and Castletown. After over 20 years service with the Company, she was sold to London agents in January 1943, and then went on to Stornoway on the Isle of Lewis for four years. She transferred to Kirkwall in Orkney in 1947. "Cushag"
Mary le Port Street, Bristol Centre – consisting of an art gallery, museum, hotel and exhibition centre, to be built in the area between St Peter's Church and High Street – came to nothing, and the sites on either side of Mary le Port Street were leased to the Bank of England and the Norwich Union Insurance Company, whose now-derelict buildings still occupy the sites. Mary le Port Street has disappeared from the map; its carriageway was taken up in October 1963. The ruins of St Mary le Port Church are a scheduled monument, whilst the tower is a listed building. In 2018, Bristol City