What is the name of Springfield's founder in the Simpsons series?

According to "Hewn from Courage: The History of Springfield", Jebediah Springfield was born in Axhandle, Virginia in 1774, the twelfth of seventeen children. His father Ned Springfield was a farmer who introduced yellow Eurasian late-summer squash to Eastern Virginia. While yellow Eurasian late-summer squash no longer grows in the part of the country, the yellow Eurasian late-summer squash beetle, one of nature's hungriest pests, is still around to remind us of Mr. Springfield's foresight. Little is known of Jebediah's mother Olive Springfield, except that she was very pretty and very busy. Young Jebediah, like most children who grow up to be great heroes, was a hard-working student who always treated his elders with much respect. He did his homework by candlelight and never "imitated bodily noises in class or taped naughty pictures to the classroom screen". Young Jebediah had one dream: To go west and explore the great American country.