Wilmington
The Newark Monthly Meeting House & Cemetery (where Valentine worshipped and is buried), located just north of the intersection of Baynard Rd & Newark Union Public Rd (there is a marker on the left side of the road just before the turn, pictured below), Shellpot Creek (which is located just a couple of streets over east of the Newark Monthly Meeting House and Cemetery), the Christiana River area, and the Brandywine River area (basically areas where Valentine and the family originally obtained land).