Running between N and O St. is a road that is mostly called Dumbarton St. However, in more than a few places it is called Dumbarton Ave. For instance, Dumbarton United Methodist Church uses the address “3133 Dumbarton Avenue”. Also, several homes are labeled with “Dumbarton Ave.” Hell, as shown above, Google Maps can’t make up its mind and just calls it both.
So what’s the deal? Why the split personality? For the answers, follow GM back through the 18th and 19th centuries after the jump: