THE FAT OR LARD BREEDS OF SWINE 431 
trict with good results. Later, it is stated, white Chinese 
pigs were imported to Chester county and crossed on the 
native pigs. Eventually the different strains of blood 
were combined, and from this combination came the original 
Chester-White breed. 
(2) Todd's Improved Chester-White has a somewhat 
complicated history. About 1827, Norfolk Thin Rind 
pigs were imported from England to Connecticut. Two 
brothers, named Todd, bought a boar of this breed, and a 
sow of what was called the Grass breed, and took them 
to Ohio, where they were bred together with considerable 
success. Later, a Joseph Haskins brought to Ohio a boar 
of the Byfield breed, and a sow similar to the original 
Todd sow. The Todd and Haskins pigs were freely bred 
together. Isaac Todd also used other boars in his herd, 
one of which was said to have been of the large Grass 
breed, and another was called a Normandy boar; little 
is known of the breeding of either. Both of these boars 
were white in color. In 1865, Isaac Todd introduced 
Chester-White blood. His son, S. H. Todd, made further 
use of the Chester-White, and by careful breeding and 
selection evolved what is known as Todd’s Improved 
Chester-White. 
(3) The Ohio Improved Chester-White is the product of 
the efforts of L. B. Silver, of Ohio, who, in 1865, began 
breeding Chester-Whites, and who aimed to produce a 
superior type through selection. 
525. Description. — Some years ago, the Chester-White 
was rated as the largest breed in the United States, but 
modern methods of breeding have decreased the size and 
produced an animal of more quality than the original type. 
As bred at present, the Chester-White may be ranked as of 
medium size, or about the same as the Poland-China. 
