Peter Folger's grandson was known for inventing what?
Peter Folger (Nantucket settler): Peter Folger or Foulger (1617 –1690) was a poet and an interpreter of the American Indian language for the first settlers of Nantucket. Peter Folger (Nantucket settler):  He was the grandfather of Benjamin Franklin. Benjamin Franklin:  As an inventor, he is known for the lightning rod, bifocals, and the Franklin stove, among other inventions.
lightning rod, bifocals, and the Franklin stove