Chester White Chester White The Chester White is a breed of domestic pig which originated in Chester County, Pennsylvania. It was formerly known as the Chester County White. The Chester White was first developed around 1815–1818, using strains of large, white pigs common to the Northeast U.S. and a white boar imported from John Russell Duke of Bedford, Bedfordshire county, England, referred to as the Woburn breed, brought by Captain Jefferies of Liverpool, England. In 1848, two breeders at a county fair, one from Delaware County and the other from Chester County, showed their two breeds. The judge decided to use the
Chester White name Chester County White. "County" was dropped and the breed became known as Chester White. By 1884, a breed association was officially formed, but competing organizations, sometimes for individual strains, continued to appear into the early 20th century. The "International Ohio Improved Chester Swine Record Association" was formed in 1891, and incorporated in 1895, in Yates County, New York. The breed was officially named the Ohio Improved Chester with OIC commonly used. The 51-member Board of Directors included members from Maine, Texas, Iowa, Michigan, New York, Wisconsin, Connecticut, Kansas, Ohio, Illinois, Missouri, Nebraska, North Carolina, California, New Jersey, Georgia, Pennsylvania,