In 1828 a new batch of pear trees arrived from England , and it was realized that the Bartlett pear was the same as the Williams pear , but by this time the name had stuck , and is still the commonest name for this type of pear in Canada and the United States . Because it was thought to be a seedling tree , it became known by the name `` Bartlett pear '' , but in 1828 a new batch of pear trees arrived from England , and it was realized that the Bartlett pear was the same as the Williams pear . By this time the name `` Bartlett pear '' had stuck , and is still the commonest name for this type of pear in Canada and the United States .