What if they moved to ... New York City ???

The majority of immigrants came in through New York.  Some went west, some went to NJ and some stayed in New York.  And some got jobs in NYC and moved back there.

 I've put the link on my website https://sites.google.com/site/jcgeney/home/hudson-directories   page.

 Five boroughs of New York City phone books.


1940 NYC telephone directories 5 (Brooklyn, Queens, Bronx, Manhattan, Staten Island)   
free from the NY Public Library.