John Grubb was a two-term member of the Pennsylvania Provincial Assembly who was one of the original Cornish

Cornish people

The Cornish are a people associated with Cornwall, a county and Duchy in the south-west of the United Kingdom that is seen in some respects as distinct from England, having more in common with the other Celtic parts of the United Kingdom such as Wales, as well as with other Celtic nations in Europe...

 settlers in Brandywine Hundred

Brandywine Hundred

Brandywine Hundred is the name of an unincorporated subdivision of New Castle County, Delaware. Hundreds were once used as a basis for representation in the Delaware General Assembly. Brandywine Hundred is a commonly used colloquial name for this area...

, Delaware, in what became known as Grubb's Landing. Grubb founded a large tannery that continued in operation for over 100 years. He was also one of the 150 signers of the Concessions and Agreements for Province of West Jersey

West Jersey

West Jersey and East Jersey were two distinct parts of the Province of New Jersey. The political division existed for 28 years, between 1674 and 1702...

.

Born in Stoke Climsland

Stoke Climsland

Stoke Climsland is a village in the River Tamar Valley, Cornwall, United Kingdom within the civil parish of Stokeclimsland.The manor of Climsland was one of the 17 Antiqua maneria of the Duchy of Cornwall.-Notable buildings:...

, Cornwall

Cornwall

Cornwall is a unitary authority and ceremonial county of England, within the United Kingdom. It is bordered to the north and west by the Celtic Sea, to the south by the English Channel, and to the east by the county of Devon, over the River Tamar. Cornwall has a population of , and covers an area of...

, he was the 4th son of Henry Grubb Jr.