Official census records from the United States census of 1930.
Please do notice the following:
DEPARTMENT OF COMMERCE-BUREAU OF THE CENSUS
FIFTEENTH CENSUS OF THE UNITED STATES: 1930
PLACE OF BIRTH
Place of birth of each person enumerated and of his or her parents. If born in the United States, give State or Territory. If of foreign birth, give country in which birthplace is now situated. (See Instructions.) Distinguish Canada-French from Canada-English, and Irish Free State from Northern Ireland
MOTHER TONGUE (OR NATIVE LANGUAGE) OF FOREIGN BORN
Language spoken in home before coming to the United States