While the skilled German is seeking new openings abroad, the unskilled Pole is drifting into Westphalia to do the work for which the native German’s standard is too high [which he is too proud to do], so that the Immigration statistics at present outbalance those of Emigration.
[...]
Polish unskilled labour has supplanted the native German in Westphalia, permeated to Odessa on the Black Sea, and found its way in increasing volume to the United States.
Polish diaspora (Wikipedia)
Nationality and the War, Dent, 1915 (footnote)
Nationality and the War, Dent, 1915