Of course it was William Penn. If William Penn was the proprietor of Pennsylvania then he was most definitley the proprietor of Delaware. It was asking WHO is the proprietor of both of those states are. There wasn't two people.
delaware
Georgia, Maryland, and Pennsylvania.
Pennsylvania was the colony he established.
William Penn
The proprietor of New Netherlands was the Dutch West India Company in 1624.
The first Governor of the colony of Pennsylvania was its founder and Proprietor, William Penn.* The first Governor of the Commonwealth of Pennsylvania after the creation of the United States was Thomas Mifflin, whose term began in 1790. *"Proprietor" meaning Penn had personally received a grant of the entire colony from King Charles II of Great Britain. Penn spent much of his time in England and during his absences, the colony was actually governed by its lieutenant governor - who was referred to by the colonists as the governor. Penn was the actual legal Governor, however, even though he was more usually referred to as the Proprietor.
Penn established Philadelphia
By 1710 Pennsylvania had become the largest city in the colonies.
William Penn :)
Proprietary with William Penn as the absolute proprietor.
The first governor of the Pennsylvania colony, which was part of the middle colonies, was William Markham, although he was only classed as a deputy governor at the time. His term ran from 1681 to 1682. The proprietor of the colony at this time was William Penn.