Yellow Ware
Yellowware, or yellow ware, is a type of earthenware named after its yellow appearance given to it by the clay used for its production. Originating in the United Kingdom in the late 18th century, it was also produced in the eastern United States from the late 1820s.
Beginning in the late 18th century, potters in Scotland and northern England began manufacturing vessels of yellow-firing clay. The trade spread to Wales. By the early 19th century, potters skilled in yellowware manufacture began to emigrate to the United States.
In the United States, production centered on New Jersey, Pennsylvania, Maryland, New England and Ohio. The earliest documented American yellowware was in 1797, with large-scale production starting in 1828 in New Jersey.
Much of the yellowware we see in the west, survived the trip on wagon trains.