Historic immigration quotes
There are some quotes dealing with immigration here, such as these:
According to their writings, America's founding fathers were skeptical of massive immigration. Thomas Jefferson was concerned that, "they will bring with them the principles of government they leave." Alexander Hamilton speculated that, "The safety of the Republic depends essentially on the energy of a common national sentiment:...The influx of foreigners must, therefore, tend to...corrupt the national spirit....." Those of us concerned about America's slide toward socialism and "big brother" government can identify with Thomas Jefferson's prophetic quote.
It also includes this Washington Post quote:
...The record is crowded with instances in which groups of immigrants have stoutly resisted Americanism, have resented the suggestion that they learn the language of the land, and have maintained their foreignisms...at the present time, in certain areas, immigrants constitute a substantial percentage of the population, and drifting together and holding aloof from Americanization, hold themselves as foreigners in America.
That's - obviously - not from the current version of the rag, but from 1924.