I found the article interesting as the amount of foreign-born people was far lower than I'd have guessed.
I also found the historical numbers interesting, as there was a huge influx turn of the 1900s until the 50s, then a huge drop, then it went back up again.
When my grandparents came in, they pretty much hopped on a boat and showed up. By the time the 60s were here, our extended family had an empty house that's sole purpose was to house our relatives coming over from the old country until they could get housing of their own. As I recall, they had to have a job and sponsor lined up before they could come over. Far different than when the generation before them came over.