Crosby, originally Croshbyr, is, similar to Wellsworth, a small quiet seaside town renowned for its fresh air. It is named after an impressive stone cross made for the town's churchyard in the eleventh century.

Until 1912, Crosby was the Wellsworth and Suddery Railway's terminus; then the line was extended to Knapford. During the same year, a tunnel about 1.6 kilometres (1 mile) in length was built.

Duck once crashed into the barber's shop here.

On some maps of Sodor, it is misspelt "Crusby"