Jenner Township, Somerset County, Pennsylvania named in honor of Dr. Edward Jenner, discoverer of the smallpox vaccine. Early Jenner Township settlers were primarily German and English speakers engaged in agriculture. Pennsylvania Dutch was still spoken in rural parts of the township until the 1960s. Jenner Crossroads, the township's first substantial European settlement, grew near a grist mill and tavern stop established about 1800 along the Pennsylvania Road. Samuel Steel built a sawmill at Jenner Crossroads in 1817; John Shopwood opened a hotel in 1825, and Samuel Elder opened the first store in 1836 Other early industry in the township included a sawmill on Quemahoning Creek
Henry Jenner of the language used in West Cornwall in the 18th century, although his pupil Robert Morton Nance would later steer the language revival towards mediaeval Cornish. At a time when many people thought the Cornish language had died Jenner observed In 2010, Michael Everson published a new edition entitled "Henry Jenner's Handbook of the Cornish Language", which contains modern IPA phonetic transcriptions to make clear to modern readers what phonology Jenner was recommending. The book also contains three essays written by Jenner thirty years prior to the 1904 publication, as well as some examples of a number of Christmas and