Knollware is a small town, not close to any other towns or any landmarks of note. About 100 years ago, a devout soul named Zachariah Knoll founded the town while on a pilgrimage from Delaware. He named it half after himself (as you could do back in those days), and half after his original home of Delaware.
It is also the location of Herbert and Ambrose's garage. The two brothers were born and raised in the town.