Milkmaid - there are a number of breeds with the white body black points.
The true White Park (or ancient White Park) is a horned breed, not closely related to the British White or American White Park, more closely related to Highlands and Galloways. True White Parks are found in Britain, US, Germany, Denmark, Australia and Canada. The most well known herd is the ancient Chillingham herd in England, which dates back to the thirteenth century, and has been a closed herd since. The White Park is a heritage/rare breed. They are about 300 pounds heavier at maturity than British Whites and American White Parks.
The American White Park is a predominantly polled breed (3 - 5% horned), similar in size to Herefords, Shorthorns etc. Its origin is unclear, one theory is that they were developed from British Whites, another theory favours mainly Angus blood with some ancient White Park. Genetic market tests show that American White Parks and ancient White Parks are not closely related, so any contribution to the genetics have been diluted by the introduction of other breeds.
The British White was originally a polled and horned breed, but since 1948 only polled animals have been registered. Similar in size to the American White Park.
The Galloway comes in a range of colours including black, dun (silver through brown), red, white with dark pigment on the points, and belted.
There are other breeds that occasionally display the white body black points, including the Berrenda, N'guni, BON and Texas Longhorn.