These are Bartlett Pears.
Mr. Enoch Bartlett of Dorchester Massachusetts named the pears after himself but there are over 150 synonyms around the world for this type of pear. Originally called “The Williams’ bon chrétien pear, commonly called the Williams pear, or the Bartlett pear in the United States and Canada, is the most commonly grown variety of pear in most countries outside Asia” click for history
Tips for buying and ripening Bartlett pears in this CBS news video you don’t want them to get mushy.
Pears. Do you like them cooked or raw?