SF/Midwest/Northeast

I'd like to test out a comparison I have made and see if others agree or disagree: the cities in the northeast quadrant of the US (in essence, the cities that spread from the northeast corridor's Bowash across to the Middle West) share much in common. These cities started to follow a common route during the second half of the 19th century, particularly after the Civil War. Their industralization spawned an enormous amount of European immigration. They grew tremendously during the pre-automotive era and thus their character was greatly affected by their tight, urban, and walkable neighborhoods and a dependence on public transporation. If you accept the above assessment, would you also agree with the following: of all the US cities outside of the northeast and middle west, only one truly followed their route to urbanization and the way that urbanization that dense, traditional, historic urbanization still exists today. THAT CITY WOULD BE SAN FRANCISCO.>