No Pit the younger did not have any children- he came close to marrying Lady Eleanor Eden in 1797 but decided against it- he remained a bachelor and consequently had no children.
Yes, he had two children, Jane Alice (was named after her mother) and Mary may. i also found that out on wikipedia it is a very usefull website
yes, he had three children
William Morris and his wife Jane had two daughters: Jane Alice (born 1861) Mary May (born 1862)
Yes