Was looking at some information and found out that in the UK the Whitebred Shorthorn is on the endangers list of breeds with only about 150 - 250 animals.
The description of the Whitebred Shorthorn is:
The Whitebred Shorthorn is a completely separate breed from the Beef Shorthorn or Dairy Shorthorn. Whitebred Shorthorns are bred mainly in the border counties of England and Scotland, and although the origin of the breed is somewhat obscure, it is likely that they were derived from the white dual purpose Shorthorn cattle, locally known as the Cumberland Shorthorn.
The Whitebred Shorthorn bull is bred primarily as a crossing bull to mate with any breed of female, but principally with the Galloway to produce the noted Blue Grey, and the Highland producing a Cross Highlander, the progeny being well suited to the full range of British climatic conditions.