Main Page | See live article | Alphabetical index Crosby is an area of Sefton, Merseyside, North West England. It was formerly an Urban District until absorbed into the new Sefton district in 1973. Crosby itself was formed from the urban districts of Great Crosby, Little Crosby and Waterloo with Seaforth. See these entries for details. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.